1 00:00:21,029 --> 00:00:16,040 [Music] 2 00:00:24,010 --> 00:00:23,050 do 3 00:00:32,709 --> 00:00:24,020 [Music] 4 00:00:35,670 --> 00:00:32,719 welcome back to the ufo rabbit hole 5 00:00:37,990 --> 00:00:35,680 podcast i'm your host kelly chase 6 00:00:39,350 --> 00:00:38,000 so now we're really starting to get to 7 00:00:41,430 --> 00:00:39,360 the good part 8 00:00:43,830 --> 00:00:41,440 as we discussed in the last two episodes 9 00:00:44,790 --> 00:00:43,840 the pentagon has confirmed that ufos are 10 00:00:47,750 --> 00:00:44,800 real 11 00:00:50,150 --> 00:00:47,760 however they very conspicuously avoided 12 00:00:51,830 --> 00:00:50,160 public speculation about what they could 13 00:00:53,670 --> 00:00:51,840 actually be 14 00:00:54,869 --> 00:00:53,680 what they have said basically boils down 15 00:00:56,630 --> 00:00:54,879 to this 16 00:00:58,790 --> 00:00:56,640 there are intelligently controlled 17 00:01:01,029 --> 00:00:58,800 technological objects being tracked in 18 00:01:03,110 --> 00:01:01,039 our skies and in our oceans that can do 19 00:01:05,350 --> 00:01:03,120 things that we can't explain 20 00:01:07,910 --> 00:01:05,360 we don't know what they are exactly and 21 00:01:09,910 --> 00:01:07,920 we don't know who they belong to but 22 00:01:12,390 --> 00:01:09,920 they aren't ours and we don't believe 23 00:01:14,390 --> 00:01:12,400 that they belong to any other country 24 00:01:16,149 --> 00:01:14,400 so what the heck are they 25 00:01:17,350 --> 00:01:16,159 and does this mean what it sounds like 26 00:01:19,190 --> 00:01:17,360 it means 27 00:01:22,070 --> 00:01:19,200 although the pentagon has very 28 00:01:23,670 --> 00:01:22,080 purposefully not said the words alien or 29 00:01:25,030 --> 00:01:23,680 extraterrestrial 30 00:01:27,510 --> 00:01:25,040 they have yet to offer any other 31 00:01:29,670 --> 00:01:27,520 explanation and so the natural 32 00:01:31,109 --> 00:01:29,680 conclusion for many is that if they 33 00:01:33,670 --> 00:01:31,119 aren't from here 34 00:01:35,749 --> 00:01:33,680 they must be from out there 35 00:01:36,870 --> 00:01:35,759 so what evidence is there that it's 36 00:01:38,550 --> 00:01:36,880 aliens 37 00:01:40,550 --> 00:01:38,560 like everything else that has to do with 38 00:01:42,630 --> 00:01:40,560 this topic the answer is more 39 00:01:45,670 --> 00:01:42,640 complicated than you might think 40 00:01:48,389 --> 00:01:45,680 so get some snacks clear your schedule 41 00:01:50,630 --> 00:01:48,399 and buckle up friends we've got a lot of 42 00:01:54,310 --> 00:01:50,640 ground to cover today and a great place 43 00:01:57,749 --> 00:01:54,320 for us to start is with fermi's paradox 44 00:02:00,709 --> 00:01:57,759 in 1950 enrico fermi a physicist at los 45 00:02:02,870 --> 00:02:00,719 alamos national laboratory who as a side 46 00:02:04,389 --> 00:02:02,880 note developed the first nuclear reactor 47 00:02:05,830 --> 00:02:04,399 was having lunch with his friends when 48 00:02:08,710 --> 00:02:05,840 he wondered aloud 49 00:02:10,469 --> 00:02:08,720 where is everybody fermi had been 50 00:02:12,630 --> 00:02:10,479 thinking about the lack of evidence for 51 00:02:13,990 --> 00:02:12,640 extraterrestrial life and it just didn't 52 00:02:17,110 --> 00:02:14,000 make sense to him 53 00:02:20,070 --> 00:02:17,120 after all if the universe is 14 billion 54 00:02:23,190 --> 00:02:20,080 years old and there are over a billion 55 00:02:24,390 --> 00:02:23,200 trillion stars how could we possibly be 56 00:02:29,190 --> 00:02:24,400 alone 57 00:02:30,790 --> 00:02:29,200 heard from some of our neighbors by now 58 00:02:33,750 --> 00:02:30,800 just look at our own development as a 59 00:02:35,990 --> 00:02:33,760 species in less than a million years we 60 00:02:37,589 --> 00:02:36,000 went from rudimentary wooden tools to 61 00:02:39,110 --> 00:02:37,599 landing on the moon 62 00:02:41,430 --> 00:02:39,120 launching a probe beyond our solar 63 00:02:43,350 --> 00:02:41,440 system and we're starting to eye mars 64 00:02:44,949 --> 00:02:43,360 for colonization 65 00:02:46,869 --> 00:02:44,959 fermi crunched some numbers and he 66 00:02:48,710 --> 00:02:46,879 reasoned that any species with the 67 00:02:50,949 --> 00:02:48,720 ability and drive to colonize other 68 00:02:55,190 --> 00:02:50,959 worlds would be able to colonize an 69 00:02:57,830 --> 00:02:55,200 entire galaxy in about 10 million years 70 00:02:59,350 --> 00:02:57,840 now 10 million years may sound like a 71 00:03:00,790 --> 00:02:59,360 crazy long time 72 00:03:04,710 --> 00:03:00,800 but when you think about the fact that 73 00:03:06,550 --> 00:03:04,720 our galaxy is 10 000 million years old 74 00:03:07,350 --> 00:03:06,560 you realize that's actually no time at 75 00:03:09,990 --> 00:03:07,360 all 76 00:03:11,750 --> 00:03:10,000 so given those odds we almost certainly 77 00:03:13,350 --> 00:03:11,760 should have encountered extraterrestrial 78 00:03:16,309 --> 00:03:13,360 intelligence by now 79 00:03:19,110 --> 00:03:16,319 but as fermi asked where is everybody 80 00:03:21,270 --> 00:03:19,120 and that's the paradox there are a bunch 81 00:03:23,110 --> 00:03:21,280 of possible explanations for why this is 82 00:03:25,509 --> 00:03:23,120 the case and all of them are super 83 00:03:28,710 --> 00:03:25,519 interesting and also very relevant to 84 00:03:30,949 --> 00:03:28,720 this whole is aliens conversation so 85 00:03:32,789 --> 00:03:30,959 let's spend a little time with this 86 00:03:35,270 --> 00:03:32,799 one thing that makes fermi's paradox 87 00:03:37,110 --> 00:03:35,280 particularly perplexing is that the 88 00:03:38,470 --> 00:03:37,120 earth is relatively young in the context 89 00:03:40,789 --> 00:03:38,480 of the universe 90 00:03:43,270 --> 00:03:40,799 the universe is estimated to be 14 91 00:03:46,470 --> 00:03:43,280 billion years old but the earth is only 92 00:03:48,149 --> 00:03:46,480 about 4.5 billion years old if we think 93 00:03:49,910 --> 00:03:48,159 about how difficult it would be for 94 00:03:51,350 --> 00:03:49,920 someone from a thousand years ago to 95 00:03:53,750 --> 00:03:51,360 comprehend our current level of 96 00:03:55,830 --> 00:03:53,760 technology and then recognize how our 97 00:03:57,670 --> 00:03:55,840 technological development has seemed to 98 00:04:00,149 --> 00:03:57,680 increase exponentially over the last 99 00:04:01,990 --> 00:04:00,159 century it can be hard to imagine what a 100 00:04:03,670 --> 00:04:02,000 civilization that's a thousand years 101 00:04:05,670 --> 00:04:03,680 ahead of us would look like 102 00:04:07,429 --> 00:04:05,680 much less one that had a head start of 103 00:04:09,509 --> 00:04:07,439 billions of years 104 00:04:11,589 --> 00:04:09,519 there is this model called the kardashev 105 00:04:13,350 --> 00:04:11,599 scale that we use to try to wrap our 106 00:04:15,350 --> 00:04:13,360 minds around this 107 00:04:17,749 --> 00:04:15,360 the kardashev scale is based on the 108 00:04:19,749 --> 00:04:17,759 assumption that as a civilization 109 00:04:20,789 --> 00:04:19,759 advances and begins to colonize the 110 00:04:22,550 --> 00:04:20,799 universe 111 00:04:24,870 --> 00:04:22,560 that its population growth and 112 00:04:27,189 --> 00:04:24,880 technological developments will require 113 00:04:29,510 --> 00:04:27,199 increasing amounts of energy and it 114 00:04:31,830 --> 00:04:29,520 categorizes civilizations by the amount 115 00:04:33,909 --> 00:04:31,840 of energy that they're able to harness 116 00:04:37,590 --> 00:04:33,919 and there are three main categories type 117 00:04:40,230 --> 00:04:37,600 1 type 2 and type 3 civilizations 118 00:04:42,790 --> 00:04:40,240 a type 1 civilization is able to harness 119 00:04:44,070 --> 00:04:42,800 all of the energy of its planet 120 00:04:46,310 --> 00:04:44,080 humans aren't even a type one 121 00:04:48,790 --> 00:04:46,320 civilization yet we're still down at 122 00:04:50,870 --> 00:04:48,800 type zero and to give you a sense of how 123 00:04:53,189 --> 00:04:50,880 far we are from that right now we're 124 00:04:56,070 --> 00:04:53,199 actually only able to produce about one 125 00:04:58,150 --> 00:04:56,080 one hundred thousands of that energy but 126 00:05:00,150 --> 00:04:58,160 as a type 1 civilization we'd 127 00:05:02,390 --> 00:05:00,160 hypothetically be able to harness all of 128 00:05:05,670 --> 00:05:02,400 the power of the earth's oceans volcanic 129 00:05:07,990 --> 00:05:05,680 activity and more a type 2 civilization 130 00:05:10,550 --> 00:05:08,000 is able to harness all of the energy of 131 00:05:12,469 --> 00:05:10,560 its host star that would take a level of 132 00:05:13,670 --> 00:05:12,479 technology that we can scarcely 133 00:05:15,590 --> 00:05:13,680 understand 134 00:05:17,749 --> 00:05:15,600 scientists proposed that it could be 135 00:05:19,830 --> 00:05:17,759 done with a hypothetical megastructure 136 00:05:21,990 --> 00:05:19,840 called a dyson sphere that would 137 00:05:24,390 --> 00:05:22,000 basically be built around the sun to 138 00:05:27,590 --> 00:05:24,400 catch every bit of solar radiation 139 00:05:30,469 --> 00:05:27,600 a type 3 civilization is able to harness 140 00:05:31,749 --> 00:05:30,479 all of the energy of its galaxy 141 00:05:33,670 --> 00:05:31,759 i'm not even going to pretend to 142 00:05:35,430 --> 00:05:33,680 speculate on how that might be done it 143 00:05:37,990 --> 00:05:35,440 truly boggles the mind 144 00:05:39,670 --> 00:05:38,000 however if a civilization was really 145 00:05:41,590 --> 00:05:39,680 billions of years ahead of us in their 146 00:05:43,590 --> 00:05:41,600 development this is the level of 147 00:05:44,790 --> 00:05:43,600 advanced civilization that would be 148 00:05:46,710 --> 00:05:44,800 possible 149 00:05:49,270 --> 00:05:46,720 and if they're out there you'd think 150 00:05:51,510 --> 00:05:49,280 they'd be super noticeable especially if 151 00:05:53,430 --> 00:05:51,520 there were a lot of them so 152 00:05:55,590 --> 00:05:53,440 how many of these advanced civilizations 153 00:05:58,469 --> 00:05:55,600 do we think might be out there 154 00:06:00,469 --> 00:05:58,479 now that's where things get complicated 155 00:06:02,790 --> 00:06:00,479 there's a generally accepted formula for 156 00:06:04,550 --> 00:06:02,800 determining how many alien civilizations 157 00:06:06,710 --> 00:06:04,560 there should be who have reached a level 158 00:06:08,469 --> 00:06:06,720 of technological sophistication that we 159 00:06:10,790 --> 00:06:08,479 should be able to detect 160 00:06:12,629 --> 00:06:10,800 this is called the drake equation and 161 00:06:14,629 --> 00:06:12,639 while scientists agree on the formula 162 00:06:16,950 --> 00:06:14,639 itself when you start plugging in 163 00:06:18,550 --> 00:06:16,960 numbers there's a lot of debate i'm not 164 00:06:21,189 --> 00:06:18,560 even going to attempt to read this 165 00:06:22,870 --> 00:06:21,199 equation to you i don't really math 166 00:06:25,350 --> 00:06:22,880 but it's pretty straightforward and 167 00:06:27,189 --> 00:06:25,360 logical once you break it down 168 00:06:29,510 --> 00:06:27,199 basically you just multiply the 169 00:06:31,749 --> 00:06:29,520 following variables together 170 00:06:34,150 --> 00:06:31,759 the rate of formation of stars suitable 171 00:06:35,830 --> 00:06:34,160 for the development of intelligent life 172 00:06:37,749 --> 00:06:35,840 the fraction of those stars with 173 00:06:40,230 --> 00:06:37,759 planetary systems 174 00:06:41,830 --> 00:06:40,240 the number of planets per solar system 175 00:06:42,790 --> 00:06:41,840 with an environment that's suitable for 176 00:06:44,790 --> 00:06:42,800 life 177 00:06:47,270 --> 00:06:44,800 the fraction of suitable planets on 178 00:06:49,350 --> 00:06:47,280 which life actually appears 179 00:06:52,070 --> 00:06:49,360 the fraction of life-bearing planets on 180 00:06:54,070 --> 00:06:52,080 which intelligent life emerges 181 00:06:55,990 --> 00:06:54,080 the fraction of civilizations that 182 00:06:58,390 --> 00:06:56,000 develop a technology that produces 183 00:07:00,390 --> 00:06:58,400 detectable signs of their existence 184 00:07:03,749 --> 00:07:00,400 and the average length of time such 185 00:07:05,589 --> 00:07:03,759 civilizations produce such signs 186 00:07:07,589 --> 00:07:05,599 that makes a lot of sense right 187 00:07:10,469 --> 00:07:07,599 the issue with the drake equation is 188 00:07:12,629 --> 00:07:10,479 that it's one big multiplication problem 189 00:07:15,270 --> 00:07:12,639 so if even one of the numbers you plug 190 00:07:16,950 --> 00:07:15,280 in is zero for instance if the number of 191 00:07:18,710 --> 00:07:16,960 other planets on which intelligent life 192 00:07:20,710 --> 00:07:18,720 can evolve is zero 193 00:07:22,710 --> 00:07:20,720 then the answer is zero and the reason 194 00:07:24,469 --> 00:07:22,720 we haven't found anyone else is because 195 00:07:26,629 --> 00:07:24,479 they aren't there 196 00:07:28,150 --> 00:07:26,639 and because that has been our experience 197 00:07:30,710 --> 00:07:28,160 it can be easy to want to stop right 198 00:07:33,110 --> 00:07:30,720 there and say case closed 199 00:07:34,790 --> 00:07:33,120 the problem is is that if we assume that 200 00:07:36,469 --> 00:07:34,800 any of those variables in the drake 201 00:07:38,629 --> 00:07:36,479 equation are zero 202 00:07:39,670 --> 00:07:38,639 or close enough to it to effectively be 203 00:07:42,710 --> 00:07:39,680 zero 204 00:07:44,390 --> 00:07:42,720 that makes us very special 205 00:07:47,830 --> 00:07:44,400 we're not just talking about one in a 206 00:07:49,430 --> 00:07:47,840 million but one in 100 billion and 207 00:07:51,110 --> 00:07:49,440 that's just talking about the planets in 208 00:07:52,550 --> 00:07:51,120 our own galaxy 209 00:07:54,230 --> 00:07:52,560 what are the chances that we are 210 00:07:56,070 --> 00:07:54,240 actually that special 211 00:07:58,070 --> 00:07:56,080 that's a question that's actually 212 00:08:00,070 --> 00:07:58,080 impossible to answer at least with the 213 00:08:01,990 --> 00:08:00,080 data we currently have because of 214 00:08:03,510 --> 00:08:02,000 something called the observation 215 00:08:07,909 --> 00:08:03,520 selection effect 216 00:08:09,830 --> 00:08:07,919 when some property of a thing is 217 00:08:11,990 --> 00:08:09,840 correlated with the observer existing in 218 00:08:14,390 --> 00:08:12,000 the first place when such an effect is 219 00:08:15,909 --> 00:08:14,400 present the data will be biased often in 220 00:08:17,830 --> 00:08:15,919 significant ways 221 00:08:19,749 --> 00:08:17,840 the more extreme the correlation 222 00:08:22,469 --> 00:08:19,759 basically the more that the thing being 223 00:08:25,029 --> 00:08:22,479 observed is related to the observer the 224 00:08:26,950 --> 00:08:25,039 more unusual effects it could have 225 00:08:28,950 --> 00:08:26,960 so in this case the thing that we're 226 00:08:30,869 --> 00:08:28,960 trying to observe is whether or not we 227 00:08:33,350 --> 00:08:30,879 are unique on a level that would make 228 00:08:35,509 --> 00:08:33,360 finding others like us unlikely 229 00:08:37,670 --> 00:08:35,519 the problem is that our human intellect 230 00:08:40,389 --> 00:08:37,680 that we use to even ask that question 231 00:08:43,589 --> 00:08:40,399 inherently makes us special as far as we 232 00:08:45,590 --> 00:08:43,599 know we're the only species in the 4.5 233 00:08:46,949 --> 00:08:45,600 billion year history of this planet that 234 00:08:48,949 --> 00:08:46,959 has reached this level of sentient 235 00:08:51,190 --> 00:08:48,959 consciousness and intelligence 236 00:08:53,509 --> 00:08:51,200 that's pretty special right there 237 00:08:55,590 --> 00:08:53,519 so ultimately we really have no way of 238 00:08:56,790 --> 00:08:55,600 knowing how special or how not special 239 00:08:58,790 --> 00:08:56,800 we are 240 00:09:01,350 --> 00:08:58,800 even if there was only one intelligent 241 00:09:03,829 --> 00:09:01,360 species in the entire universe that 242 00:09:05,269 --> 00:09:03,839 intelligent species would inevitably ask 243 00:09:07,990 --> 00:09:05,279 this question 244 00:09:10,870 --> 00:09:08,000 we could be that one or we could be one 245 00:09:12,470 --> 00:09:10,880 of billions we simply don't know 246 00:09:13,509 --> 00:09:12,480 and so that leaves a lot of unanswered 247 00:09:15,910 --> 00:09:13,519 questions 248 00:09:18,630 --> 00:09:15,920 but also a lot of possibilities in terms 249 00:09:20,230 --> 00:09:18,640 of what could explain the fermi paradox 250 00:09:22,870 --> 00:09:20,240 we can't really narrow it down without 251 00:09:25,190 --> 00:09:22,880 more information so let's talk about 252 00:09:26,630 --> 00:09:25,200 what those possibilities are 253 00:09:29,110 --> 00:09:26,640 when we get down to basics with the 254 00:09:31,110 --> 00:09:29,120 fermi paradox we recognize that one of 255 00:09:32,790 --> 00:09:31,120 two things has to be true 256 00:09:34,790 --> 00:09:32,800 either we haven't found signs of 257 00:09:36,949 --> 00:09:34,800 intelligent life outside of our planet 258 00:09:38,310 --> 00:09:36,959 because it isn't there in other words 259 00:09:40,550 --> 00:09:38,320 we're special 260 00:09:42,389 --> 00:09:40,560 or there's intelligent life all over the 261 00:09:44,070 --> 00:09:42,399 place but there's a good explanation for 262 00:09:46,230 --> 00:09:44,080 why we haven't found it yet in other 263 00:09:47,670 --> 00:09:46,240 words we're not special 264 00:09:49,590 --> 00:09:47,680 so let's start with that first 265 00:09:51,190 --> 00:09:49,600 possibility that we haven't found signs 266 00:09:53,750 --> 00:09:51,200 of intelligent life outside of our 267 00:09:55,430 --> 00:09:53,760 planet because it isn't there 268 00:09:57,829 --> 00:09:55,440 so this is a world in which we are 269 00:09:59,910 --> 00:09:57,839 special but as we'll see that's not 270 00:10:02,230 --> 00:09:59,920 necessarily good news for us 271 00:10:04,230 --> 00:10:02,240 because while fermi's math calculated 272 00:10:05,910 --> 00:10:04,240 that there were potentially thousands of 273 00:10:08,470 --> 00:10:05,920 other intelligent civilizations in our 274 00:10:10,870 --> 00:10:08,480 galaxy and other people claim much 275 00:10:12,389 --> 00:10:10,880 smaller and much more specific numbers 276 00:10:14,710 --> 00:10:12,399 like 36 277 00:10:17,110 --> 00:10:14,720 if even one of them is a type 2 or a 278 00:10:19,190 --> 00:10:17,120 type 3 civilization their presence 279 00:10:19,990 --> 00:10:19,200 should be pretty obvious 280 00:10:21,350 --> 00:10:20,000 so 281 00:10:23,509 --> 00:10:21,360 if they're supposed to be other 282 00:10:25,750 --> 00:10:23,519 intelligent civilizations here and they 283 00:10:27,910 --> 00:10:25,760 aren't then that means that there must 284 00:10:30,069 --> 00:10:27,920 be something else going on and to 285 00:10:32,630 --> 00:10:30,079 address this problem there is a theory 286 00:10:34,630 --> 00:10:32,640 of the great filter which is basically 287 00:10:37,190 --> 00:10:34,640 the idea that somewhere between the 288 00:10:40,310 --> 00:10:37,200 pre-life stage of a planet and the type 289 00:10:43,190 --> 00:10:40,320 3 stage there's a filtering event that 290 00:10:44,150 --> 00:10:43,200 all or nearly all species fail to get 291 00:10:46,550 --> 00:10:44,160 past 292 00:10:49,030 --> 00:10:46,560 if that's the case then our fate is very 293 00:10:51,110 --> 00:10:49,040 much tied to where we are in relation to 294 00:10:52,550 --> 00:10:51,120 the great filter and there are three 295 00:10:54,790 --> 00:10:52,560 possibilities 296 00:10:59,030 --> 00:10:54,800 either one were rare 297 00:11:01,110 --> 00:10:59,040 two or first or three we're screwed 298 00:11:02,550 --> 00:11:01,120 so let's start with number one that 299 00:11:04,790 --> 00:11:02,560 we're rare 300 00:11:06,710 --> 00:11:04,800 in this scenario the great filter is 301 00:11:08,949 --> 00:11:06,720 already behind us and we're one of the 302 00:11:10,470 --> 00:11:08,959 vanishingly small amount of species that 303 00:11:11,829 --> 00:11:10,480 ever make it this far 304 00:11:14,069 --> 00:11:11,839 yay us 305 00:11:15,990 --> 00:11:14,079 so if this is the case then what could 306 00:11:17,670 --> 00:11:16,000 the great filter have been 307 00:11:19,190 --> 00:11:17,680 it's hard to tell but there are some 308 00:11:20,949 --> 00:11:19,200 strong candidates 309 00:11:23,590 --> 00:11:20,959 it could be that the conditions that 310 00:11:25,910 --> 00:11:23,600 create life are extremely rare and that 311 00:11:27,269 --> 00:11:25,920 the vast majority of planets never even 312 00:11:29,590 --> 00:11:27,279 get that far 313 00:11:31,350 --> 00:11:29,600 or it could be that simple forms of life 314 00:11:33,190 --> 00:11:31,360 like single-celled organisms are 315 00:11:35,350 --> 00:11:33,200 relatively common but that it's 316 00:11:37,590 --> 00:11:35,360 extremely rare for those to develop into 317 00:11:39,829 --> 00:11:37,600 multicellular organisms 318 00:11:42,150 --> 00:11:39,839 or it could be that complex life like 319 00:11:44,630 --> 00:11:42,160 plants and animals as we know them are 320 00:11:47,509 --> 00:11:44,640 pretty common but that developing human 321 00:11:49,430 --> 00:11:47,519 level intelligence is super rare 322 00:11:51,750 --> 00:11:49,440 it could also be that the earth itself 323 00:11:53,829 --> 00:11:51,760 is just super rare we tend to take for 324 00:11:56,629 --> 00:11:53,839 granted how perfectly calibrated our 325 00:11:58,629 --> 00:11:56,639 planet is to support life just the fact 326 00:12:00,790 --> 00:11:58,639 that we have such a big moon that orbits 327 00:12:03,110 --> 00:12:00,800 so closely to the planet and is tidally 328 00:12:05,030 --> 00:12:03,120 locked with the earth creates the ocean 329 00:12:07,430 --> 00:12:05,040 tides and currents that stabilize our 330 00:12:09,509 --> 00:12:07,440 seasons making our planet particularly 331 00:12:11,030 --> 00:12:09,519 hospitable to life 332 00:12:13,030 --> 00:12:11,040 maybe it's our moon that's allowed 333 00:12:15,030 --> 00:12:13,040 complex life to evolve and flourish long 334 00:12:16,470 --> 00:12:15,040 enough to produce intelligent life it's 335 00:12:18,389 --> 00:12:16,480 certainly possible 336 00:12:19,910 --> 00:12:18,399 and actually we have lots of reasons to 337 00:12:22,230 --> 00:12:19,920 believe that our moon is nothing like 338 00:12:23,110 --> 00:12:22,240 other moons it's an outlier in a lot of 339 00:12:24,550 --> 00:12:23,120 ways 340 00:12:26,389 --> 00:12:24,560 i know i don't have time to talk to you 341 00:12:28,310 --> 00:12:26,399 about the moon right now we're right in 342 00:12:30,230 --> 00:12:28,320 the middle of something but stick a pin 343 00:12:32,150 --> 00:12:30,240 in that and we'll get back to it because 344 00:12:34,230 --> 00:12:32,160 the moon is weird 345 00:12:35,190 --> 00:12:34,240 so possibility number two is that we're 346 00:12:37,190 --> 00:12:35,200 first 347 00:12:39,350 --> 00:12:37,200 if we're not rare but we still can't 348 00:12:41,030 --> 00:12:39,360 find anybody else could it be that we 349 00:12:41,990 --> 00:12:41,040 just got to the stage of development 350 00:12:43,430 --> 00:12:42,000 first 351 00:12:45,030 --> 00:12:43,440 perhaps 352 00:12:47,190 --> 00:12:45,040 one obvious complication for this 353 00:12:49,430 --> 00:12:47,200 possibility though is that as we 354 00:12:51,430 --> 00:12:49,440 discussed the earth is relatively young 355 00:12:53,430 --> 00:12:51,440 compared to the universe itself 356 00:12:55,509 --> 00:12:53,440 so how could we be first if we're 357 00:12:57,350 --> 00:12:55,519 seemingly late to the party 358 00:12:59,350 --> 00:12:57,360 one explanation could be that the 359 00:13:01,670 --> 00:12:59,360 universe was just too chaotic for life 360 00:13:03,190 --> 00:13:01,680 to develop during the time before the 361 00:13:05,110 --> 00:13:03,200 earth was formed 362 00:13:06,710 --> 00:13:05,120 the earth may have just popped up at the 363 00:13:08,790 --> 00:13:06,720 earliest time where there was enough 364 00:13:11,509 --> 00:13:08,800 stability to support the development and 365 00:13:13,350 --> 00:13:11,519 evolution of complex life forms 366 00:13:15,509 --> 00:13:13,360 in this scenario there wouldn't even 367 00:13:17,670 --> 00:13:15,519 necessarily need to be a great filtering 368 00:13:19,590 --> 00:13:17,680 event we just have to be patient until 369 00:13:21,509 --> 00:13:19,600 everyone else catches up 370 00:13:23,829 --> 00:13:21,519 and the final possibility is that the 371 00:13:25,430 --> 00:13:23,839 great filter is ahead of us and we're 372 00:13:27,750 --> 00:13:25,440 most likely on a collision course with 373 00:13:30,069 --> 00:13:27,760 our ultimate demise as a species in 374 00:13:31,910 --> 00:13:30,079 short we're screwed it could be that 375 00:13:34,069 --> 00:13:31,920 once a species reaches a certain level 376 00:13:35,910 --> 00:13:34,079 of technological advancement that most 377 00:13:37,110 --> 00:13:35,920 if not all of them end up destroying 378 00:13:38,949 --> 00:13:37,120 themselves 379 00:13:41,030 --> 00:13:38,959 this scenario hits pretty close to home 380 00:13:43,030 --> 00:13:41,040 when you think about the absolute havoc 381 00:13:45,750 --> 00:13:43,040 that our technological advancements have 382 00:13:46,949 --> 00:13:45,760 reeked on the planet and on each other 383 00:13:49,389 --> 00:13:46,959 not only are we destroying the 384 00:13:52,470 --> 00:13:49,399 environment but we currently have 385 00:13:54,629 --> 00:13:52,480 150 times more nuclear bombs on the 386 00:13:56,389 --> 00:13:54,639 planet than it would take to effectively 387 00:13:58,069 --> 00:13:56,399 end life as we know it 388 00:13:59,829 --> 00:13:58,079 the idea that the great filter is ahead 389 00:14:01,030 --> 00:13:59,839 of us doesn't really feel like that much 390 00:14:03,670 --> 00:14:01,040 of a stretch 391 00:14:05,590 --> 00:14:03,680 however luckily for us there's still the 392 00:14:08,069 --> 00:14:05,600 second possible explanation for fermi's 393 00:14:10,150 --> 00:14:08,079 paradox which is that there is 394 00:14:11,670 --> 00:14:10,160 intelligent life all over the place but 395 00:14:13,110 --> 00:14:11,680 there's a good explanation for why we 396 00:14:14,790 --> 00:14:13,120 haven't found it yet 397 00:14:16,550 --> 00:14:14,800 while the first explanation depends 398 00:14:17,750 --> 00:14:16,560 heavily on the idea that we're special 399 00:14:19,509 --> 00:14:17,760 in some way 400 00:14:21,910 --> 00:14:19,519 this explanation relies on the 401 00:14:23,670 --> 00:14:21,920 mediocrity principle which basically 402 00:14:25,430 --> 00:14:23,680 assumes that our planet and our solar 403 00:14:27,189 --> 00:14:25,440 system are pretty average and not 404 00:14:29,030 --> 00:14:27,199 different from most other solar systems 405 00:14:31,509 --> 00:14:29,040 in any meaningful way 406 00:14:33,430 --> 00:14:31,519 so if we're not special in any way then 407 00:14:34,629 --> 00:14:33,440 there should be intelligent species in 408 00:14:36,790 --> 00:14:34,639 the galaxy 409 00:14:38,150 --> 00:14:36,800 and so if we can't see them we have to 410 00:14:40,389 --> 00:14:38,160 assume that there's just something 411 00:14:42,629 --> 00:14:40,399 that's preventing us from detecting them 412 00:14:44,150 --> 00:14:42,639 as for what that something could be 413 00:14:46,870 --> 00:14:44,160 the possibilities are pretty 414 00:14:49,110 --> 00:14:46,880 mind-bending and i'm not gonna lie some 415 00:14:49,910 --> 00:14:49,120 of them are actually pretty terrifying 416 00:14:52,629 --> 00:14:49,920 so 417 00:14:53,670 --> 00:14:52,639 possibility number one is that we are 418 00:14:55,430 --> 00:14:53,680 [\h__\h] 419 00:14:57,110 --> 00:14:55,440 it could be that we're just projecting 420 00:14:59,750 --> 00:14:57,120 the idea that a highly advanced 421 00:15:01,829 --> 00:14:59,760 technological society would want to do 422 00:15:03,590 --> 00:15:01,839 things like colonize space and find 423 00:15:05,829 --> 00:15:03,600 increasingly elaborate ways to harness 424 00:15:07,910 --> 00:15:05,839 more energy to meet perpetually rising 425 00:15:09,910 --> 00:15:07,920 demand because those are the kind of 426 00:15:12,470 --> 00:15:09,920 [\h__\h] moves that we would make 427 00:15:15,269 --> 00:15:12,480 and yet those are the very assumptions 428 00:15:18,389 --> 00:15:15,279 upon which the kardashev scale is based 429 00:15:20,629 --> 00:15:18,399 so our idea of what a type 1 type 2 and 430 00:15:22,470 --> 00:15:20,639 type 3 civilization would be could just 431 00:15:24,310 --> 00:15:22,480 be way off base 432 00:15:25,990 --> 00:15:24,320 maybe most higher intelligences are 433 00:15:27,990 --> 00:15:26,000 smart enough to pursue more worthy and 434 00:15:29,509 --> 00:15:28,000 less destructive pursuits 435 00:15:31,350 --> 00:15:29,519 maybe at a certain point they just 436 00:15:33,509 --> 00:15:31,360 upload their consciousness to a nebula 437 00:15:34,790 --> 00:15:33,519 and just vibe it's possible that they're 438 00:15:36,790 --> 00:15:34,800 out there and we just don't know what 439 00:15:38,629 --> 00:15:36,800 we're looking at because we expect them 440 00:15:40,870 --> 00:15:38,639 all to be dicks like us 441 00:15:43,509 --> 00:15:40,880 possibility number two is that there are 442 00:15:45,430 --> 00:15:43,519 way bigger [\h__\h] out there than us 443 00:15:47,590 --> 00:15:45,440 it could be that there are scary 444 00:15:49,509 --> 00:15:47,600 predator civilizations out there and 445 00:15:51,670 --> 00:15:49,519 it's so quiet because most intelligent 446 00:15:53,509 --> 00:15:51,680 civilizations are smart enough to not go 447 00:15:55,430 --> 00:15:53,519 announcing their location 448 00:15:57,670 --> 00:15:55,440 if you think about it we've actually 449 00:15:59,829 --> 00:15:57,680 been pretty cavalier about broadcasting 450 00:16:02,230 --> 00:15:59,839 signals out into space and trying to 451 00:16:05,990 --> 00:16:02,240 contact alien life considering that we 452 00:16:07,670 --> 00:16:06,000 have no idea who is out there and who or 453 00:16:09,030 --> 00:16:07,680 what might respond to our little 454 00:16:10,870 --> 00:16:09,040 messages 455 00:16:12,949 --> 00:16:10,880 some of the greatest scientific minds of 456 00:16:15,189 --> 00:16:12,959 our times including carl sagan and 457 00:16:17,030 --> 00:16:15,199 stephen hawking were both vehemently 458 00:16:19,430 --> 00:16:17,040 opposed to trying to make contact with 459 00:16:21,509 --> 00:16:19,440 extraterrestrial intelligences because 460 00:16:24,230 --> 00:16:21,519 of this exact danger 461 00:16:26,069 --> 00:16:24,240 in the always poetic words of carl sagan 462 00:16:28,389 --> 00:16:26,079 the newest children in a strange and 463 00:16:29,829 --> 00:16:28,399 uncertain cosmos should listen quietly 464 00:16:31,829 --> 00:16:29,839 for a long time 465 00:16:34,069 --> 00:16:31,839 patiently learning about the universe 466 00:16:35,910 --> 00:16:34,079 and comparing notes before shouting into 467 00:16:37,189 --> 00:16:35,920 an unknown jungle that we do not 468 00:16:39,269 --> 00:16:37,199 understand 469 00:16:41,350 --> 00:16:39,279 possibility three is that there's just 470 00:16:44,230 --> 00:16:41,360 one super [\h__\h] 471 00:16:46,710 --> 00:16:44,240 it could be that there's just one super 472 00:16:49,030 --> 00:16:46,720 advanced predator species out there that 473 00:16:50,470 --> 00:16:49,040 keeps tabs on all other technologically 474 00:16:52,230 --> 00:16:50,480 developing species 475 00:16:54,230 --> 00:16:52,240 and basically exterminates them when 476 00:16:56,310 --> 00:16:54,240 they cross a certain threshold 477 00:16:58,870 --> 00:16:56,320 terrifying moving on 478 00:17:00,550 --> 00:16:58,880 another possibility is that aliens have 479 00:17:01,749 --> 00:17:00,560 been here but it was just a long time 480 00:17:04,949 --> 00:17:01,759 ago 481 00:17:06,710 --> 00:17:04,959 earth is 4.5 billion years old but we've 482 00:17:08,470 --> 00:17:06,720 only had the ability to meaningfully 483 00:17:11,029 --> 00:17:08,480 look for signs of other intelligent life 484 00:17:13,189 --> 00:17:11,039 in the galaxy for the last century or so 485 00:17:15,350 --> 00:17:13,199 a tiny blip in the history of both 486 00:17:16,630 --> 00:17:15,360 humanity and of the planet 487 00:17:18,309 --> 00:17:16,640 just because we don't see 488 00:17:20,470 --> 00:17:18,319 extraterrestrials hanging out in our 489 00:17:22,069 --> 00:17:20,480 cosmic neighborhood now doesn't mean 490 00:17:23,829 --> 00:17:22,079 that they've never been here 491 00:17:25,750 --> 00:17:23,839 or that they won't return 492 00:17:27,510 --> 00:17:25,760 the next possibility is just that we 493 00:17:29,830 --> 00:17:27,520 live in the boonies 494 00:17:32,150 --> 00:17:29,840 it could be that the galaxy is colonized 495 00:17:34,549 --> 00:17:32,160 but that we just live in some far-flung 496 00:17:36,390 --> 00:17:34,559 outposts that they rarely visit 497 00:17:38,470 --> 00:17:36,400 basically the earth could just be in a 498 00:17:40,390 --> 00:17:38,480 very unfashionable zip code 499 00:17:42,710 --> 00:17:40,400 in all seriousness though our solar 500 00:17:45,190 --> 00:17:42,720 system actually is way out on the edge 501 00:17:46,789 --> 00:17:45,200 of one of the milky way's spiral arms 502 00:17:48,630 --> 00:17:46,799 maybe we're just too far out to get 503 00:17:50,390 --> 00:17:48,640 visitors very often 504 00:17:52,549 --> 00:17:50,400 the next possibility is that our 505 00:17:53,750 --> 00:17:52,559 technology is just too primitive to 506 00:17:55,190 --> 00:17:53,760 detect them 507 00:17:56,630 --> 00:17:55,200 just like you wouldn't be able to talk 508 00:17:58,870 --> 00:17:56,640 to someone on a cell phone with a 509 00:18:00,950 --> 00:17:58,880 messenger pigeon it could be that the 510 00:18:02,710 --> 00:18:00,960 technology that's out there is just so 511 00:18:04,630 --> 00:18:02,720 advanced and so different that we're 512 00:18:06,310 --> 00:18:04,640 basically looking for the wrong evidence 513 00:18:07,830 --> 00:18:06,320 with the wrong tools 514 00:18:09,590 --> 00:18:07,840 we assume that the signatures of 515 00:18:11,990 --> 00:18:09,600 intelligent communication would look the 516 00:18:13,430 --> 00:18:12,000 way that ours do but we could be very 517 00:18:15,830 --> 00:18:13,440 wrong about that 518 00:18:17,750 --> 00:18:15,840 the next possibility is that we are too 519 00:18:20,070 --> 00:18:17,760 primitive to detect them 520 00:18:21,669 --> 00:18:20,080 in the wise words of renowned physicist 521 00:18:23,750 --> 00:18:21,679 michiao cuckoo 522 00:18:25,669 --> 00:18:23,760 quote if ants and anthill detect a 523 00:18:27,350 --> 00:18:25,679 10-lane superhighway being built near 524 00:18:29,190 --> 00:18:27,360 them would they understand how to 525 00:18:30,549 --> 00:18:29,200 communicate with the workers 526 00:18:33,190 --> 00:18:30,559 would they assume that the workers 527 00:18:35,270 --> 00:18:33,200 communicate only on ant frequencies 528 00:18:37,029 --> 00:18:35,280 in fact the ants are so primitive that 529 00:18:39,830 --> 00:18:37,039 they would not even understand what a 10 530 00:18:41,590 --> 00:18:39,840 lane superhighway was unquote it could 531 00:18:43,909 --> 00:18:41,600 be that we're ants in this scenario and 532 00:18:46,070 --> 00:18:43,919 that extraterrestrial civilizations are 533 00:18:47,909 --> 00:18:46,080 right in front of us potentially even 534 00:18:49,669 --> 00:18:47,919 sharing space with us 535 00:18:51,510 --> 00:18:49,679 and our perspective from our current 536 00:18:53,590 --> 00:18:51,520 stage of evolutionary development is 537 00:18:55,029 --> 00:18:53,600 such that we don't even comprehend what 538 00:18:56,549 --> 00:18:55,039 we're seeing 539 00:18:58,789 --> 00:18:56,559 the next possibility is that the 540 00:19:00,390 --> 00:18:58,799 government is hiding the evidence 541 00:19:01,990 --> 00:19:00,400 we're going to talk about this one a lot 542 00:19:04,390 --> 00:19:02,000 more later so we don't need to spend 543 00:19:06,710 --> 00:19:04,400 much time on it but it is a possibility 544 00:19:08,070 --> 00:19:06,720 the next possibility is that the earth 545 00:19:09,990 --> 00:19:08,080 is a zoo 546 00:19:11,909 --> 00:19:10,000 it could be that we are being observed 547 00:19:13,990 --> 00:19:11,919 by another species as part of some sort 548 00:19:15,750 --> 00:19:14,000 of experiment or it could be that the 549 00:19:17,909 --> 00:19:15,760 solar system is being treated like some 550 00:19:19,750 --> 00:19:17,919 sort of protected national park 551 00:19:22,230 --> 00:19:19,760 either way there might be a look but 552 00:19:24,630 --> 00:19:22,240 don't communicate or interfere policy 553 00:19:27,029 --> 00:19:24,640 with regards to our planet sort of like 554 00:19:28,630 --> 00:19:27,039 the prime directive from star trek 555 00:19:29,990 --> 00:19:28,640 and if you feel like we're starting to 556 00:19:32,230 --> 00:19:30,000 get into crazy town with these 557 00:19:34,710 --> 00:19:32,240 possibilities you should know that some 558 00:19:36,630 --> 00:19:34,720 of the most respected names in ufology 559 00:19:39,830 --> 00:19:36,640 and the disclosure movement including lu 560 00:19:41,669 --> 00:19:39,840 elizondo do not scoff at this idea and 561 00:19:43,190 --> 00:19:41,679 throw it around regularly as a genuine 562 00:19:44,710 --> 00:19:43,200 possibility 563 00:19:46,789 --> 00:19:44,720 i told you in episode one that i was 564 00:19:48,549 --> 00:19:46,799 going to make you 75 weirder at dinner 565 00:19:50,390 --> 00:19:48,559 parties and i meant it 566 00:19:52,390 --> 00:19:50,400 we're just getting started 567 00:19:54,390 --> 00:19:52,400 the next possibility is that we are 568 00:19:55,909 --> 00:19:54,400 fundamentally wrong about the nature of 569 00:19:57,830 --> 00:19:55,919 our reality 570 00:19:59,750 --> 00:19:57,840 in recent years scientists have 571 00:20:02,149 --> 00:19:59,760 increasingly discussed the possibility 572 00:20:03,190 --> 00:20:02,159 that we could be living in a simulation 573 00:20:05,270 --> 00:20:03,200 for real 574 00:20:06,789 --> 00:20:05,280 so hypothetically it could be that there 575 00:20:08,549 --> 00:20:06,799 just weren't any other advanced 576 00:20:09,909 --> 00:20:08,559 intelligences programmed into the 577 00:20:11,990 --> 00:20:09,919 simulation 578 00:20:14,549 --> 00:20:12,000 in fact regardless of whether or not it 579 00:20:16,470 --> 00:20:14,559 helps us explain the fermi paradox the 580 00:20:17,590 --> 00:20:16,480 simulation hypothesis still might end up 581 00:20:19,029 --> 00:20:17,600 being true 582 00:20:21,029 --> 00:20:19,039 the more we learn about quantum 583 00:20:23,830 --> 00:20:21,039 mechanics the more evidence we find that 584 00:20:25,590 --> 00:20:23,840 could point to that startling conclusion 585 00:20:27,510 --> 00:20:25,600 a lot of those findings are too complex 586 00:20:29,510 --> 00:20:27,520 to get into now but i'll give you this 587 00:20:31,110 --> 00:20:29,520 little thought experiment 588 00:20:33,110 --> 00:20:31,120 if you think about the evolution of 589 00:20:35,110 --> 00:20:33,120 computer and video games from the early 590 00:20:36,710 --> 00:20:35,120 8-bit systems to the current emergence 591 00:20:38,549 --> 00:20:36,720 of virtual reality 592 00:20:40,549 --> 00:20:38,559 it's clear that our ability to create 593 00:20:43,430 --> 00:20:40,559 more and more realistic virtual 594 00:20:45,909 --> 00:20:43,440 environments is increasing exponentially 595 00:20:48,149 --> 00:20:45,919 even with vr headsets now it may not 596 00:20:50,070 --> 00:20:48,159 look real exactly but your body still 597 00:20:52,149 --> 00:20:50,080 responds to it like it is 598 00:20:55,430 --> 00:20:52,159 and with this exponential improvement of 599 00:20:57,190 --> 00:20:55,440 vr technologies it's not hard to imagine 600 00:20:59,830 --> 00:20:57,200 that at some point we're going to be 601 00:21:02,549 --> 00:20:59,840 able to create simulated experiences and 602 00:21:05,350 --> 00:21:02,559 environments that are indistinguishable 603 00:21:07,110 --> 00:21:05,360 from reality from there the logic is 604 00:21:09,190 --> 00:21:07,120 that if you could create this sort of 605 00:21:11,669 --> 00:21:09,200 simulation you would 606 00:21:13,590 --> 00:21:11,679 and hypothetically someone could create 607 00:21:15,510 --> 00:21:13,600 a simulated universe and in that 608 00:21:17,669 --> 00:21:15,520 simulated universe a species could 609 00:21:20,870 --> 00:21:17,679 advance to the point that it creates its 610 00:21:23,190 --> 00:21:20,880 own simulation within the simulation and 611 00:21:25,270 --> 00:21:23,200 so on hypothetically there could be a 612 00:21:27,990 --> 00:21:25,280 near infinite number of simulated 613 00:21:30,390 --> 00:21:28,000 universes within the real universe 614 00:21:32,310 --> 00:21:30,400 so if that's the case then what are the 615 00:21:34,630 --> 00:21:32,320 chances that we're actually in base 616 00:21:35,990 --> 00:21:34,640 reality and that's actually one of the 617 00:21:38,390 --> 00:21:36,000 least convincing arguments for the 618 00:21:40,710 --> 00:21:38,400 simulation hypothesis we'll definitely 619 00:21:42,630 --> 00:21:40,720 get into others in another episode but 620 00:21:44,549 --> 00:21:42,640 for now we're still on the alien 621 00:21:46,470 --> 00:21:44,559 question and through the lens of the 622 00:21:49,270 --> 00:21:46,480 fermi paradox and its many many 623 00:21:52,070 --> 00:21:49,280 explanations we can start to see how 624 00:22:05,540 --> 00:21:52,080 complex this question is and how many 625 00:22:05,550 --> 00:22:45,190 [Music] 626 00:22:49,350 --> 00:22:46,870 i don't know what your experience was 627 00:22:51,110 --> 00:22:49,360 but as a kid born in the 80s when i was 628 00:22:52,630 --> 00:22:51,120 growing up the idea that we were alone 629 00:22:55,110 --> 00:22:52,640 in the universe seemed like it was 630 00:22:56,710 --> 00:22:55,120 treated as the default and the most 631 00:22:59,110 --> 00:22:56,720 likely option 632 00:23:01,270 --> 00:22:59,120 and i'm talking like completely alone as 633 00:23:03,990 --> 00:23:01,280 in the conditions for even the most 634 00:23:05,990 --> 00:23:04,000 simplistic and rudimentary forms of life 635 00:23:07,909 --> 00:23:06,000 are so rare and mysterious that the 636 00:23:09,430 --> 00:23:07,919 earth was likely the only place that it 637 00:23:11,029 --> 00:23:09,440 ever happened 638 00:23:13,510 --> 00:23:11,039 but as i've gotten older and 639 00:23:15,830 --> 00:23:13,520 particularly in the last 10 years it 640 00:23:17,590 --> 00:23:15,840 feels like a shift has occurred where 641 00:23:19,909 --> 00:23:17,600 more and more people believe that the 642 00:23:21,669 --> 00:23:19,919 universe is likely teeming with life and 643 00:23:22,710 --> 00:23:21,679 that it's only a matter of time until we 644 00:23:24,390 --> 00:23:22,720 find it 645 00:23:27,190 --> 00:23:24,400 and we're even taking a long hard look 646 00:23:29,270 --> 00:23:27,200 at places within our own solar system 647 00:23:31,110 --> 00:23:29,280 i did some digging and it turns out that 648 00:23:33,350 --> 00:23:31,120 there have actually been some pretty 649 00:23:34,710 --> 00:23:33,360 dramatic swings throughout history when 650 00:23:37,029 --> 00:23:34,720 it comes to our belief about the 651 00:23:39,750 --> 00:23:37,039 existence of life on other planets 652 00:23:41,190 --> 00:23:39,760 however by and large the dominant belief 653 00:23:43,029 --> 00:23:41,200 throughout most of recorded human 654 00:23:45,190 --> 00:23:43,039 history has been that the existence of 655 00:23:48,230 --> 00:23:45,200 life elsewhere in the universe wasn't 656 00:23:50,149 --> 00:23:48,240 just a possibility but a probability 657 00:23:52,310 --> 00:23:50,159 our more cynical outlook on the prospect 658 00:23:53,830 --> 00:23:52,320 in recent decades is more the exception 659 00:23:55,350 --> 00:23:53,840 than the rule 660 00:23:57,430 --> 00:23:55,360 these days our outlook on the 661 00:23:59,190 --> 00:23:57,440 possibility of finding extraterrestrial 662 00:24:01,110 --> 00:23:59,200 life is much sunnier 663 00:24:03,029 --> 00:24:01,120 two-thirds of americans say that their 664 00:24:05,510 --> 00:24:03,039 best guess is that intelligent life 665 00:24:07,510 --> 00:24:05,520 exists on other planets 666 00:24:10,070 --> 00:24:07,520 to find evidence of the possibility of 667 00:24:11,669 --> 00:24:10,080 life existing elsewhere in the cosmos we 668 00:24:13,110 --> 00:24:11,679 don't need to look any further than our 669 00:24:14,710 --> 00:24:13,120 own planet 670 00:24:15,909 --> 00:24:14,720 like we were discussing with the fermi 671 00:24:17,909 --> 00:24:15,919 paradox 672 00:24:20,549 --> 00:24:17,919 until we find evidence of life somewhere 673 00:24:22,870 --> 00:24:20,559 else it's hard to know how common it is 674 00:24:24,630 --> 00:24:22,880 for life to develop on a planet 675 00:24:26,070 --> 00:24:24,640 especially considering that we don't 676 00:24:28,470 --> 00:24:26,080 actually know what causes life to 677 00:24:30,470 --> 00:24:28,480 develop in the first place 678 00:24:33,110 --> 00:24:30,480 we do know that our planet appears to be 679 00:24:35,430 --> 00:24:33,120 uniquely calibrated to support life so 680 00:24:37,350 --> 00:24:35,440 we can probably assume that if there are 681 00:24:39,430 --> 00:24:37,360 certain conditions that are particularly 682 00:24:41,669 --> 00:24:39,440 favorable to the spontaneous creation of 683 00:24:44,230 --> 00:24:41,679 life they probably existed on earth 684 00:24:46,310 --> 00:24:44,240 about 3.7 billion years ago 685 00:24:48,710 --> 00:24:46,320 and how many other earth-like planets 686 00:24:50,950 --> 00:24:48,720 might there actually be out there 687 00:24:53,750 --> 00:24:50,960 as we continue to identify more and more 688 00:24:55,590 --> 00:24:53,760 exoplanets outside of our solar system 689 00:24:57,830 --> 00:24:55,600 we're getting more and more data to help 690 00:24:59,669 --> 00:24:57,840 us answer that question although there 691 00:25:02,230 --> 00:24:59,679 is considerable debate about what 692 00:25:04,390 --> 00:25:02,240 exactly constitutes an earth-like planet 693 00:25:06,549 --> 00:25:04,400 and how likely a planet that is like 694 00:25:08,390 --> 00:25:06,559 ours would be to develop life 695 00:25:11,029 --> 00:25:08,400 evidence suggests that there may be as 696 00:25:13,350 --> 00:25:11,039 many as one earth-like planet for every 697 00:25:14,390 --> 00:25:13,360 five sun-like stars in the milky way 698 00:25:16,630 --> 00:25:14,400 alone 699 00:25:17,750 --> 00:25:16,640 that gives us a lot of chances for life 700 00:25:19,750 --> 00:25:17,760 to develop 701 00:25:22,470 --> 00:25:19,760 but what about places that are nothing 702 00:25:24,070 --> 00:25:22,480 like earth could life possibly arise in 703 00:25:26,070 --> 00:25:24,080 environments that aren't as friendly to 704 00:25:26,830 --> 00:25:26,080 life as we know it the more we learn 705 00:25:28,789 --> 00:25:26,840 about 706 00:25:30,710 --> 00:25:28,799 extremophiles the more we think that the 707 00:25:32,870 --> 00:25:30,720 answer could be yes 708 00:25:34,310 --> 00:25:32,880 extremophiles are organisms that live in 709 00:25:36,870 --> 00:25:34,320 conditions that we would normally 710 00:25:39,990 --> 00:25:36,880 consider to be hostile to life including 711 00:25:42,390 --> 00:25:40,000 extreme temperature acidity alkalinity 712 00:25:44,549 --> 00:25:42,400 or chemical concentration 713 00:25:46,230 --> 00:25:44,559 these organisms challenge everything 714 00:25:48,149 --> 00:25:46,240 that we thought we knew about what it 715 00:25:50,630 --> 00:25:48,159 takes to support life 716 00:25:52,230 --> 00:25:50,640 for example there's a bacterium called 717 00:25:54,549 --> 00:25:52,240 d-radiodurans 718 00:25:56,789 --> 00:25:54,559 that not only thrives in the cores of 719 00:25:58,789 --> 00:25:56,799 nuclear reactors but it can survive 720 00:26:01,669 --> 00:25:58,799 exposure to everything from toxic 721 00:26:03,990 --> 00:26:01,679 chemicals and corrosive acids to extreme 722 00:26:06,149 --> 00:26:04,000 heat above the boiling point of water 723 00:26:07,830 --> 00:26:06,159 sub-zero temperatures and even the 724 00:26:10,310 --> 00:26:07,840 vacuum of space 725 00:26:11,990 --> 00:26:10,320 there are also three species of fungi 726 00:26:14,630 --> 00:26:12,000 that were discovered inside the 727 00:26:16,789 --> 00:26:14,640 abandoned chernobyl nuclear power plant 728 00:26:18,710 --> 00:26:16,799 scientists studied these fungi and found 729 00:26:20,470 --> 00:26:18,720 out that they grow faster in the 730 00:26:23,029 --> 00:26:20,480 presence of radiation and even 731 00:26:25,110 --> 00:26:23,039 effectively eat the radiation 732 00:26:27,590 --> 00:26:25,120 using the pigment melanin that captures 733 00:26:30,149 --> 00:26:27,600 the radiant energy similar to the way it 734 00:26:32,149 --> 00:26:30,159 absorbs uv radiation in human skin to 735 00:26:34,390 --> 00:26:32,159 help avoid sunburns 736 00:26:36,390 --> 00:26:34,400 these extremophiles force us to rethink 737 00:26:39,110 --> 00:26:36,400 what it even means for something to be 738 00:26:41,029 --> 00:26:39,120 alive and to reconsider all of the 739 00:26:43,510 --> 00:26:41,039 vastly different ways that life might 740 00:26:45,669 --> 00:26:43,520 adapt itself to various environments 741 00:26:48,070 --> 00:26:45,679 it even begs the question of whether or 742 00:26:50,549 --> 00:26:48,080 not the earth really is uniquely suited 743 00:26:51,830 --> 00:26:50,559 to support life or if we just view it 744 00:26:53,510 --> 00:26:51,840 that way because it's the only 745 00:26:55,110 --> 00:26:53,520 environment we know of that supports 746 00:26:56,950 --> 00:26:55,120 life as we know it 747 00:26:59,190 --> 00:26:56,960 there's even evidence that some 748 00:27:01,590 --> 00:26:59,200 extremophiles on earth could survive in 749 00:27:03,430 --> 00:27:01,600 the conditions on mars so it's not 750 00:27:05,190 --> 00:27:03,440 difficult to imagine that there might be 751 00:27:07,350 --> 00:27:05,200 a wide variety of environments that 752 00:27:09,350 --> 00:27:07,360 could potentially give rise to at least 753 00:27:11,590 --> 00:27:09,360 simple life forms 754 00:27:13,990 --> 00:27:11,600 and speaking of mars the idea that there 755 00:27:16,549 --> 00:27:14,000 could be life on mars could actually be 756 00:27:19,110 --> 00:27:16,559 more than hypothetical in fact former 757 00:27:21,669 --> 00:27:19,120 nasa scientist gilbert v levin 758 00:27:24,789 --> 00:27:21,679 claims that evidence of life on mars was 759 00:27:26,710 --> 00:27:24,799 found back in the 1970s when the viking 760 00:27:28,630 --> 00:27:26,720 landers were sent to explore the martian 761 00:27:30,630 --> 00:27:28,640 surface levin was the principal 762 00:27:33,750 --> 00:27:30,640 investigator on an experiment that he 763 00:27:35,269 --> 00:27:33,760 claims detected microbial respiration in 764 00:27:37,750 --> 00:27:35,279 the martian soil 765 00:27:40,310 --> 00:27:37,760 he claims his team actually recorded 766 00:27:43,029 --> 00:27:40,320 four separate positive results supported 767 00:27:45,190 --> 00:27:43,039 by five varied controls coming from each 768 00:27:48,549 --> 00:27:45,200 of the twin viking spacecraft which 769 00:27:51,430 --> 00:27:48,559 landed around 4 000 miles apart for 770 00:27:53,909 --> 00:27:51,440 levin finding what was a clear byproduct 771 00:27:56,070 --> 00:27:53,919 of life was incontrovertible proof that 772 00:27:58,149 --> 00:27:56,080 there must be some sort of microbial 773 00:28:01,029 --> 00:27:58,159 life in the soil of mars 774 00:28:03,909 --> 00:28:01,039 however because actual organic matter 775 00:28:05,830 --> 00:28:03,919 wasn't found nasa dismissed the positive 776 00:28:07,990 --> 00:28:05,840 results as being evidence of some sort 777 00:28:10,070 --> 00:28:08,000 of inorganic matter that was mimicking 778 00:28:11,830 --> 00:28:10,080 life but was not life 779 00:28:13,430 --> 00:28:11,840 no other explanation was offered for 780 00:28:16,070 --> 00:28:13,440 what that might be 781 00:28:17,830 --> 00:28:16,080 in other words don't worry about it 782 00:28:19,909 --> 00:28:17,840 still it does make sense why nasa would 783 00:28:21,350 --> 00:28:19,919 hold off until finding actual life 784 00:28:22,470 --> 00:28:21,360 itself before making such an 785 00:28:24,630 --> 00:28:22,480 announcement 786 00:28:27,029 --> 00:28:24,640 the profound implications for finding 787 00:28:28,630 --> 00:28:27,039 even microbial life on other planets is 788 00:28:30,389 --> 00:28:28,640 hard to overstate 789 00:28:32,149 --> 00:28:30,399 for one it would eliminate most of the 790 00:28:34,549 --> 00:28:32,159 answers to the fermi paradox that are 791 00:28:36,470 --> 00:28:34,559 based on the idea that we're special if 792 00:28:38,389 --> 00:28:36,480 our nearest neighbor who we previously 793 00:28:41,350 --> 00:28:38,399 thought was potentially too hostile for 794 00:28:43,350 --> 00:28:41,360 life proves to have microbial life it 795 00:28:45,190 --> 00:28:43,360 would mean that we weren't that special 796 00:28:46,149 --> 00:28:45,200 and the universe is likely teeming with 797 00:28:48,470 --> 00:28:46,159 life 798 00:28:50,310 --> 00:28:48,480 so for now we continue to look for signs 799 00:28:51,830 --> 00:28:50,320 of life in our solar system 800 00:28:54,149 --> 00:28:51,840 and it turns out that we actually have 801 00:28:56,950 --> 00:28:54,159 some pretty strong candidates europa is 802 00:28:58,950 --> 00:28:56,960 the smallest of jupiter's galilean moons 803 00:29:01,590 --> 00:28:58,960 named for galileo who first discovered 804 00:29:03,830 --> 00:29:01,600 them in the early 1600s and is slightly 805 00:29:05,750 --> 00:29:03,840 smaller than our own moon ice-covered 806 00:29:07,350 --> 00:29:05,760 europa might not seem like a great 807 00:29:08,310 --> 00:29:07,360 candidate for finding life at first 808 00:29:10,389 --> 00:29:08,320 glance 809 00:29:12,710 --> 00:29:10,399 but due to an elliptical orbit around 810 00:29:15,269 --> 00:29:12,720 jupiter that causes geothermal activity 811 00:29:17,830 --> 00:29:15,279 within the moon itself there's believed 812 00:29:19,830 --> 00:29:17,840 to be an ocean of liquid water beneath 813 00:29:22,789 --> 00:29:19,840 the surface of europa 814 00:29:24,789 --> 00:29:22,799 this along with a thin oxygen atmosphere 815 00:29:27,669 --> 00:29:24,799 gives scientists hope of one day finding 816 00:29:30,149 --> 00:29:27,679 signs of life in europa's icy depths 817 00:29:31,669 --> 00:29:30,159 although titan is a moon of saturn it 818 00:29:33,110 --> 00:29:31,679 actually has more in common with the 819 00:29:34,549 --> 00:29:33,120 earth than it does with other moons in 820 00:29:36,470 --> 00:29:34,559 our solar system 821 00:29:38,149 --> 00:29:36,480 and as far as we know it's the only 822 00:29:40,230 --> 00:29:38,159 other place in our solar system where 823 00:29:41,669 --> 00:29:40,240 stable bodies of liquid can be found on 824 00:29:43,510 --> 00:29:41,679 the surface 825 00:29:45,190 --> 00:29:43,520 titan also has many other features that 826 00:29:47,750 --> 00:29:45,200 would be familiar to us 827 00:29:50,070 --> 00:29:47,760 including a seasonal climate 828 00:29:53,110 --> 00:29:50,080 weather and familiar surface features 829 00:29:55,029 --> 00:29:53,120 like rivers dunes and deltas 830 00:29:55,909 --> 00:29:55,039 however that's where the similarities 831 00:29:58,230 --> 00:29:55,919 end 832 00:30:01,190 --> 00:29:58,240 unlike earth titan's atmosphere is made 833 00:30:03,510 --> 00:30:01,200 of nitrogen not oxygen and instead of 834 00:30:05,990 --> 00:30:03,520 oceans and rivers of water titan's 835 00:30:07,350 --> 00:30:06,000 liquid bodies are made of liquid methane 836 00:30:09,510 --> 00:30:07,360 and ethane 837 00:30:12,710 --> 00:30:09,520 that combined with recorded temperatures 838 00:30:14,549 --> 00:30:12,720 of negative 290 degrees fahrenheit and 839 00:30:16,230 --> 00:30:14,559 we have to assume that if life does 840 00:30:18,070 --> 00:30:16,240 exist on titan that it looks very 841 00:30:20,870 --> 00:30:18,080 different from life as we know it 842 00:30:23,190 --> 00:30:20,880 another moon of saturn enceladus may 843 00:30:26,310 --> 00:30:23,200 also be harboring alien life 844 00:30:28,710 --> 00:30:26,320 like europa enceladus has an icy crust 845 00:30:29,909 --> 00:30:28,720 covering subsurface oceans of liquid 846 00:30:32,470 --> 00:30:29,919 salt water 847 00:30:34,149 --> 00:30:32,480 tectonic activity inside the moon causes 848 00:30:37,110 --> 00:30:34,159 cracks and rifts in the surface of the 849 00:30:39,269 --> 00:30:37,120 ice causing huge geysers that spray out 850 00:30:41,269 --> 00:30:39,279 of the moon the trail of which helps to 851 00:30:43,430 --> 00:30:41,279 form one of saturn's rings 852 00:30:45,750 --> 00:30:43,440 and in those geysers scientists have 853 00:30:47,350 --> 00:30:45,760 been able to detect evidence of organic 854 00:30:49,669 --> 00:30:47,360 compounds that make up some of the 855 00:30:51,029 --> 00:30:49,679 building blocks of life here on earth 856 00:30:53,190 --> 00:30:51,039 so while we still don't have a 857 00:30:54,789 --> 00:30:53,200 definitive answer about the existence of 858 00:30:56,549 --> 00:30:54,799 life on other planets 859 00:30:58,310 --> 00:30:56,559 based on the existing evidence it 860 00:31:00,950 --> 00:30:58,320 appears that our chances of finding life 861 00:31:02,470 --> 00:31:00,960 elsewhere in the cosmos is pretty good 862 00:31:04,070 --> 00:31:02,480 now whether any of that life could 863 00:31:06,149 --> 00:31:04,080 potentially be intelligent life is 864 00:31:07,750 --> 00:31:06,159 another question entirely 865 00:31:09,590 --> 00:31:07,760 but let's assume for a minute that there 866 00:31:11,750 --> 00:31:09,600 was intelligent life on a planet in 867 00:31:13,750 --> 00:31:11,760 another solar system would it even be 868 00:31:15,350 --> 00:31:13,760 possible for them to get here 869 00:31:17,029 --> 00:31:15,360 there are many who believe that while 870 00:31:18,549 --> 00:31:17,039 there could very well be intelligent 871 00:31:20,950 --> 00:31:18,559 life on other planets 872 00:31:23,190 --> 00:31:20,960 the vast distances between solar systems 873 00:31:25,669 --> 00:31:23,200 would make it impossible for any species 874 00:31:27,669 --> 00:31:25,679 to visit even their nearest neighbors 875 00:31:29,190 --> 00:31:27,679 and this isn't an insignificant problem 876 00:31:31,110 --> 00:31:29,200 to overcome 877 00:31:33,269 --> 00:31:31,120 let's take our closest star alpha 878 00:31:35,029 --> 00:31:33,279 centauri and imagine that there is an 879 00:31:37,430 --> 00:31:35,039 earth-like planet around it that we'd 880 00:31:40,070 --> 00:31:37,440 like to visit it takes light from alpha 881 00:31:41,110 --> 00:31:40,080 centauri about 4.3 years to reach the 882 00:31:43,029 --> 00:31:41,120 earth 883 00:31:45,269 --> 00:31:43,039 obviously we need to travel much slower 884 00:31:47,669 --> 00:31:45,279 than the speed of light so how might we 885 00:31:49,830 --> 00:31:47,679 get there and how long would it take 886 00:31:51,430 --> 00:31:49,840 well to start with rocket fuel which 887 00:31:53,590 --> 00:31:51,440 we've traditionally used for space 888 00:31:55,830 --> 00:31:53,600 travel is completely out 889 00:31:57,590 --> 00:31:55,840 the fastest manned vehicle ever was the 890 00:32:00,389 --> 00:31:57,600 apollo 10 rocket that reached a 891 00:32:01,269 --> 00:32:00,399 blistering speed of 25 000 miles per 892 00:32:04,470 --> 00:32:01,279 hour 893 00:32:07,350 --> 00:32:04,480 however at that speed it would take 120 894 00:32:09,669 --> 00:32:07,360 000 years to reach alpha centauri 895 00:32:12,310 --> 00:32:09,679 obviously that's not ideal to get to 896 00:32:14,310 --> 00:32:12,320 alpha centauri in one human lifetime 897 00:32:15,909 --> 00:32:14,320 we'd need to be able to travel at one 898 00:32:18,310 --> 00:32:15,919 tenth the speed of light 899 00:32:20,549 --> 00:32:18,320 but to travel that fast with rocket fuel 900 00:32:22,310 --> 00:32:20,559 we'd need a fuel tank that is the size 901 00:32:24,470 --> 00:32:22,320 of the known universe 902 00:32:26,789 --> 00:32:24,480 that's definitely not going to work what 903 00:32:29,029 --> 00:32:26,799 we need is a much more efficient fuel 904 00:32:31,350 --> 00:32:29,039 than rocket fuel so what else could we 905 00:32:33,430 --> 00:32:31,360 use to achieve interstellar travel 906 00:32:37,029 --> 00:32:33,440 well one possibility is that we could 907 00:32:38,789 --> 00:32:37,039 use fusion or put more directly and i 908 00:32:40,070 --> 00:32:38,799 swear i learned this from an actual 909 00:32:41,990 --> 00:32:40,080 scientist 910 00:32:44,310 --> 00:32:42,000 we could basically blow up a bunch of 911 00:32:46,789 --> 00:32:44,320 nuclear bombs behind us and ride that 912 00:32:50,310 --> 00:32:46,799 wave into another solar system 913 00:32:52,789 --> 00:32:50,320 specifically we'd need about 300 000 one 914 00:32:55,190 --> 00:32:52,799 megaton hydrogen bombs that we'd set off 915 00:32:57,269 --> 00:32:55,200 behind us one at a time at regular 916 00:32:59,350 --> 00:32:57,279 intervals for a month straight 917 00:33:01,590 --> 00:32:59,360 that would be enough to get us to 1 10 918 00:33:03,909 --> 00:33:01,600 the speed of light into alpha centauri 919 00:33:06,470 --> 00:33:03,919 in about 44 years 920 00:33:08,710 --> 00:33:06,480 however it's not just enough to arrive 921 00:33:10,870 --> 00:33:08,720 at alpha centauri we actually need to be 922 00:33:13,350 --> 00:33:10,880 able to stop when we get there and 923 00:33:15,990 --> 00:33:13,360 stopping in space is not easy 924 00:33:18,470 --> 00:33:16,000 in order to stop using this method we'd 925 00:33:19,990 --> 00:33:18,480 need just as much energy to slow down as 926 00:33:22,230 --> 00:33:20,000 we would need to get up to our cruising 927 00:33:23,590 --> 00:33:22,240 speed which means that we need to double 928 00:33:24,789 --> 00:33:23,600 the amount of time that it would take to 929 00:33:26,630 --> 00:33:24,799 get there 930 00:33:28,549 --> 00:33:26,640 so in this scenario it will actually 931 00:33:31,269 --> 00:33:28,559 take us about 90 years to get to alpha 932 00:33:33,430 --> 00:33:31,279 centauri so we'd probably need to take 933 00:33:34,870 --> 00:33:33,440 three human generations on that trip to 934 00:33:37,269 --> 00:33:34,880 ensure that they had enough people to 935 00:33:38,230 --> 00:33:37,279 man the ship for their entire journey so 936 00:33:40,789 --> 00:33:38,240 that's starting to get pretty 937 00:33:42,389 --> 00:33:40,799 complicated so are there ways that we 938 00:33:44,470 --> 00:33:42,399 could go faster 939 00:33:46,230 --> 00:33:44,480 after all although nuclear fusion is 940 00:33:48,710 --> 00:33:46,240 significantly more efficient as a source 941 00:33:50,630 --> 00:33:48,720 of energy than rocket fuel it's actually 942 00:33:53,029 --> 00:33:50,640 still not very efficient at all 943 00:33:55,750 --> 00:33:53,039 fusion only turns about one percent of 944 00:33:57,269 --> 00:33:55,760 its rest mass into energy if we wanted 945 00:33:59,269 --> 00:33:57,279 something that could turn close to a 946 00:34:00,230 --> 00:33:59,279 hundred percent of its rest mass into 947 00:34:02,389 --> 00:34:00,240 energy 948 00:34:04,070 --> 00:34:02,399 we could use a theoretical device called 949 00:34:06,070 --> 00:34:04,080 an anti-matter drive 950 00:34:08,230 --> 00:34:06,080 now i'm not even going to attempt to 951 00:34:09,829 --> 00:34:08,240 explain what anti-matter is the top 952 00:34:11,349 --> 00:34:09,839 minds in science are still working on 953 00:34:13,510 --> 00:34:11,359 figuring that one out 954 00:34:16,149 --> 00:34:13,520 just know that antimatter is like the 955 00:34:18,310 --> 00:34:16,159 weird wario version of matter 956 00:34:20,310 --> 00:34:18,320 it's matter's exact opposite 957 00:34:21,990 --> 00:34:20,320 so if you have one electron of matter 958 00:34:23,909 --> 00:34:22,000 you could also have another particle 959 00:34:26,069 --> 00:34:23,919 that is identical to this electron 960 00:34:28,550 --> 00:34:26,079 except with an opposite charge called a 961 00:34:31,030 --> 00:34:28,560 positron and if an electron and a 962 00:34:32,629 --> 00:34:31,040 positron collide they completely 963 00:34:34,629 --> 00:34:32,639 annihilate each other releasing a 964 00:34:36,710 --> 00:34:34,639 hundred percent of their energy 965 00:34:38,149 --> 00:34:36,720 so perhaps anti-matter drives could one 966 00:34:40,710 --> 00:34:38,159 day be the answer to unlocking 967 00:34:43,190 --> 00:34:40,720 interstellar travel for humanity 968 00:34:45,750 --> 00:34:43,200 but for now it costs a hundred billion 969 00:34:48,310 --> 00:34:45,760 dollars to make even one milligram of 970 00:34:50,310 --> 00:34:48,320 antimatter making it far too expensive 971 00:34:52,230 --> 00:34:50,320 to be a possibility until we find a way 972 00:34:53,909 --> 00:34:52,240 to create it at scale 973 00:34:55,510 --> 00:34:53,919 there's another hypothetical device that 974 00:34:57,829 --> 00:34:55,520 we could potentially use to travel the 975 00:34:59,829 --> 00:34:57,839 cosmos called a light sail 976 00:35:01,670 --> 00:34:59,839 a light sail would essentially allow us 977 00:35:04,069 --> 00:35:01,680 to harness light in much the same way 978 00:35:05,670 --> 00:35:04,079 that a sail harnesses wind which would 979 00:35:07,430 --> 00:35:05,680 have the added benefit of meaning that 980 00:35:09,349 --> 00:35:07,440 we wouldn't have to weigh ourselves down 981 00:35:11,030 --> 00:35:09,359 carrying a bunch of fuel 982 00:35:13,030 --> 00:35:11,040 so how does it work 983 00:35:15,270 --> 00:35:13,040 let's say that you have a kilometer wide 984 00:35:18,390 --> 00:35:15,280 sail that's coated in a reflective and 985 00:35:20,470 --> 00:35:18,400 heat-resistant substance like sapphire 986 00:35:22,470 --> 00:35:20,480 if you blasted it with a giant laser 987 00:35:24,870 --> 00:35:22,480 with the power equivalent of a hundred 988 00:35:26,790 --> 00:35:24,880 nuclear power plants the sail would 989 00:35:28,790 --> 00:35:26,800 catch that light like wind and could 990 00:35:31,190 --> 00:35:28,800 conceivably get us up to one tenth the 991 00:35:33,109 --> 00:35:31,200 speed of light hypothetically we'd only 992 00:35:34,870 --> 00:35:33,119 be limited by the size of our sail and 993 00:35:35,910 --> 00:35:34,880 the power of our laser 994 00:35:37,750 --> 00:35:35,920 however 995 00:35:39,829 --> 00:35:37,760 the scale of such a project would be 996 00:35:42,069 --> 00:35:39,839 truly mind-boggling considering that the 997 00:35:43,670 --> 00:35:42,079 laser would be so big that we'd likely 998 00:35:45,190 --> 00:35:43,680 have to build it on the moon or we 999 00:35:46,310 --> 00:35:45,200 wouldn't be able to get it up into space 1000 00:35:47,910 --> 00:35:46,320 at all 1001 00:35:50,310 --> 00:35:47,920 and it would have to be powered by 1002 00:35:52,069 --> 00:35:50,320 massive reactors which adds plenty of 1003 00:35:54,150 --> 00:35:52,079 complication on its own 1004 00:35:56,230 --> 00:35:54,160 another hypothetical device we could use 1005 00:35:58,310 --> 00:35:56,240 would be a black hole drive which would 1006 00:36:00,630 --> 00:35:58,320 literally involve creating a tiny black 1007 00:36:02,470 --> 00:36:00,640 hole and harnessing its power 1008 00:36:04,870 --> 00:36:02,480 in this case the black hole would be 1009 00:36:06,950 --> 00:36:04,880 created with light and not mass 1010 00:36:09,589 --> 00:36:06,960 if you had a sufficient density of light 1011 00:36:11,430 --> 00:36:09,599 concentrated into a small enough area 1012 00:36:15,030 --> 00:36:11,440 we're talking about the equivalent of 1013 00:36:17,030 --> 00:36:15,040 600 billion kilograms or two empire 1014 00:36:18,710 --> 00:36:17,040 state buildings down to the size of a 1015 00:36:20,710 --> 00:36:18,720 single proton 1016 00:36:22,550 --> 00:36:20,720 it could bend the fabric of space-time 1017 00:36:24,470 --> 00:36:22,560 enough to create a singularity and 1018 00:36:26,390 --> 00:36:24,480 therefore a black hole 1019 00:36:28,790 --> 00:36:26,400 this black hole would radiate hawking 1020 00:36:30,310 --> 00:36:28,800 radiation and the smaller the black hole 1021 00:36:32,710 --> 00:36:30,320 the more it would radiate and 1022 00:36:35,109 --> 00:36:32,720 hypothetically we could use that energy 1023 00:36:36,870 --> 00:36:35,119 to travel the milky way one of the top 1024 00:36:38,550 --> 00:36:36,880 candidates for interstellar travel 1025 00:36:40,710 --> 00:36:38,560 doesn't even concern itself with next 1026 00:36:41,750 --> 00:36:40,720 level propulsion systems or efficient 1027 00:36:44,069 --> 00:36:41,760 fuel 1028 00:36:45,430 --> 00:36:44,079 because with this method hypothetically 1029 00:36:47,750 --> 00:36:45,440 anywhere in the universe would 1030 00:36:49,670 --> 00:36:47,760 effectively be right next door because 1031 00:36:51,109 --> 00:36:49,680 we'd be traveling through a wormhole i 1032 00:36:53,190 --> 00:36:51,119 won't even attempt to get into the 1033 00:36:54,550 --> 00:36:53,200 physics of wormholes right now but all 1034 00:36:56,550 --> 00:36:54,560 you really need to know is that 1035 00:36:58,310 --> 00:36:56,560 wormholes are basically tunnels between 1036 00:37:00,710 --> 00:36:58,320 two black holes that connect two 1037 00:37:02,310 --> 00:37:00,720 different places in space time obviously 1038 00:37:03,910 --> 00:37:02,320 this would be ideal because we wouldn't 1039 00:37:06,550 --> 00:37:03,920 have to deal with figuring out a way to 1040 00:37:08,069 --> 00:37:06,560 travel across mine bending distances 1041 00:37:10,950 --> 00:37:08,079 but there are a few issues with this 1042 00:37:12,550 --> 00:37:10,960 method the first is that technically we 1043 00:37:15,270 --> 00:37:12,560 don't even know for sure that wormholes 1044 00:37:17,510 --> 00:37:15,280 exist it should be possible but until we 1045 00:37:19,349 --> 00:37:17,520 actually manage to find one or make one 1046 00:37:21,430 --> 00:37:19,359 it's all just speculative 1047 00:37:23,750 --> 00:37:21,440 and the second is that even if they do 1048 00:37:26,069 --> 00:37:23,760 exist we don't know if it would even be 1049 00:37:28,470 --> 00:37:26,079 possible for a human or anything else 1050 00:37:29,990 --> 00:37:28,480 for that matter to travel through one 1051 00:37:31,670 --> 00:37:30,000 and i don't know about you but i don't 1052 00:37:32,950 --> 00:37:31,680 think i'd volunteer to be the first one 1053 00:37:35,270 --> 00:37:32,960 to try it out 1054 00:37:37,670 --> 00:37:35,280 so going back to the question of whether 1055 00:37:40,310 --> 00:37:37,680 or not interstellar travel is possible 1056 00:37:41,750 --> 00:37:40,320 the answer is a hard maybe 1057 00:37:43,430 --> 00:37:41,760 we can't do it now with our current 1058 00:37:45,510 --> 00:37:43,440 technology but we're at least 1059 00:37:47,750 --> 00:37:45,520 tantalizingly close enough to be able to 1060 00:37:49,190 --> 00:37:47,760 speculate about potential methods 1061 00:37:51,430 --> 00:37:49,200 and it seems likely that we'll 1062 00:37:53,109 --> 00:37:51,440 eventually be able to make it happen 1063 00:37:55,109 --> 00:37:53,119 though whether that'll be in a hundred 1064 00:37:57,430 --> 00:37:55,119 years or a thousand years or ten 1065 00:37:59,430 --> 00:37:57,440 thousand years is hard to say but 1066 00:38:02,069 --> 00:37:59,440 certainly if we think about an advanced 1067 00:38:04,790 --> 00:38:02,079 civilization especially a type two or a 1068 00:38:06,710 --> 00:38:04,800 type three civilization it seems almost 1069 00:38:08,470 --> 00:38:06,720 a foregone conclusion that a species 1070 00:38:10,790 --> 00:38:08,480 that has achieved that level of 1071 00:38:13,030 --> 00:38:10,800 technological advancement would be able 1072 00:38:14,550 --> 00:38:13,040 to crack interstellar travel 1073 00:38:15,589 --> 00:38:14,560 so who's to say that they couldn't come 1074 00:38:22,880 --> 00:38:15,599 here 1075 00:39:21,990 --> 00:38:37,070 [Music] 1076 00:39:26,310 --> 00:39:23,829 there's another pretty major piece of 1077 00:39:27,670 --> 00:39:26,320 evidence that i frankly don't totally 1078 00:39:29,510 --> 00:39:27,680 know what to do with 1079 00:39:30,790 --> 00:39:29,520 and that's reported cases of alien 1080 00:39:32,150 --> 00:39:30,800 abductions 1081 00:39:33,670 --> 00:39:32,160 it's one thing to talk about the 1082 00:39:36,230 --> 00:39:33,680 likelihood of the existence of 1083 00:39:37,670 --> 00:39:36,240 intelligent life in the abstract or even 1084 00:39:40,390 --> 00:39:37,680 to have the more nuts and bolts 1085 00:39:42,230 --> 00:39:40,400 conversation about the craft themselves 1086 00:39:44,470 --> 00:39:42,240 but as soon as you start talking about 1087 00:39:45,670 --> 00:39:44,480 actual human encounters with non-human 1088 00:39:47,990 --> 00:39:45,680 intelligence 1089 00:39:50,230 --> 00:39:48,000 things get even more complicated 1090 00:39:52,790 --> 00:39:50,240 one major complicating factor is that 1091 00:39:54,150 --> 00:39:52,800 alien abduction is usually an individual 1092 00:39:56,150 --> 00:39:54,160 experience 1093 00:39:58,310 --> 00:39:56,160 and even when multiple people claim to 1094 00:40:00,310 --> 00:39:58,320 have been abducted at the same time 1095 00:40:03,190 --> 00:40:00,320 their experiences often differ in ways 1096 00:40:04,870 --> 00:40:03,200 that range from minor to significant 1097 00:40:07,510 --> 00:40:04,880 this also happens a lot with ufo 1098 00:40:09,430 --> 00:40:07,520 sightings for instance take the phoenix 1099 00:40:11,910 --> 00:40:09,440 lights incident which was witnessed by 1100 00:40:15,430 --> 00:40:11,920 hundreds if not thousands of people 1101 00:40:17,270 --> 00:40:15,440 over three hours and across 300 miles 1102 00:40:18,710 --> 00:40:17,280 from the nevada line all the way down 1103 00:40:20,630 --> 00:40:18,720 through tucson 1104 00:40:22,390 --> 00:40:20,640 when you have that many people reporting 1105 00:40:25,190 --> 00:40:22,400 this sighting independent from each 1106 00:40:27,990 --> 00:40:25,200 other and at the same time it's hard to 1107 00:40:29,910 --> 00:40:28,000 deny that they saw something but even 1108 00:40:32,790 --> 00:40:29,920 among those witnesses there is a lot of 1109 00:40:35,030 --> 00:40:32,800 variability in terms of what they saw 1110 00:40:36,470 --> 00:40:35,040 some people saw four lights some saw 1111 00:40:38,150 --> 00:40:36,480 five or six 1112 00:40:39,750 --> 00:40:38,160 some people said the lights were white 1113 00:40:42,069 --> 00:40:39,760 while others said that they were orange 1114 00:40:43,990 --> 00:40:42,079 or red and while many people agree that 1115 00:40:46,550 --> 00:40:44,000 the lights were part of one solid 1116 00:40:48,150 --> 00:40:46,560 v-shaped or triangular craft 1117 00:40:50,710 --> 00:40:48,160 others report seeing the lights moving 1118 00:40:52,470 --> 00:40:50,720 around independently of each other 1119 00:40:54,710 --> 00:40:52,480 this is pretty typical of reports 1120 00:40:57,109 --> 00:40:54,720 related to the ufo phenomenon 1121 00:40:59,270 --> 00:40:57,119 there's an infuriating variability and 1122 00:41:01,910 --> 00:40:59,280 lack of consistency not just between 1123 00:41:04,309 --> 00:41:01,920 different sightings but even within each 1124 00:41:06,630 --> 00:41:04,319 of the individual sightings themselves 1125 00:41:08,230 --> 00:41:06,640 and these inconsistencies become even 1126 00:41:10,710 --> 00:41:08,240 harder to parse when you're talking 1127 00:41:12,870 --> 00:41:10,720 about incidents that involve just one or 1128 00:41:14,790 --> 00:41:12,880 a handful of people as is typically the 1129 00:41:16,390 --> 00:41:14,800 case with abduction reports 1130 00:41:18,230 --> 00:41:16,400 further complicating the issue is that 1131 00:41:20,550 --> 00:41:18,240 many of the hallmarks of alien abduction 1132 00:41:22,870 --> 00:41:20,560 reports sound remarkably similar to a 1133 00:41:24,710 --> 00:41:22,880 relatively common phenomenon that nearly 1134 00:41:26,069 --> 00:41:24,720 half of all people experience at some 1135 00:41:27,589 --> 00:41:26,079 point in their lives 1136 00:41:29,829 --> 00:41:27,599 sleep paralysis 1137 00:41:31,910 --> 00:41:29,839 when you enter rem sleep a combination 1138 00:41:33,990 --> 00:41:31,920 of neurotransmitters in your brain 1139 00:41:36,550 --> 00:41:34,000 switches off moto neuron activity 1140 00:41:38,150 --> 00:41:36,560 effectively paralyzing you which keeps 1141 00:41:39,270 --> 00:41:38,160 you from harming yourself or others as 1142 00:41:41,109 --> 00:41:39,280 you dream 1143 00:41:42,790 --> 00:41:41,119 when this mechanism in the brain doesn't 1144 00:41:45,510 --> 00:41:42,800 work correctly people can end up 1145 00:41:47,589 --> 00:41:45,520 sleepwalking which can be dangerous in 1146 00:41:49,589 --> 00:41:47,599 extreme cases sleepwalkers have been 1147 00:41:52,630 --> 00:41:49,599 reported to do things like jump out of 1148 00:41:54,309 --> 00:41:52,640 fifth floor windows walk into traffic or 1149 00:41:56,710 --> 00:41:54,319 even commit murders 1150 00:41:59,270 --> 00:41:56,720 in many ways sleep paralysis is the 1151 00:42:01,349 --> 00:41:59,280 opposite of sleepwalking during normal 1152 00:42:03,349 --> 00:42:01,359 sleep the paralysis of rem sleep is 1153 00:42:05,109 --> 00:42:03,359 basically switched off before you wake 1154 00:42:07,109 --> 00:42:05,119 up but when this doesn't happen 1155 00:42:08,950 --> 00:42:07,119 correctly a person can wake up in a 1156 00:42:11,270 --> 00:42:08,960 state somewhere between sleeping and 1157 00:42:12,950 --> 00:42:11,280 waking up and find themselves still 1158 00:42:15,109 --> 00:42:12,960 unable to move 1159 00:42:16,230 --> 00:42:15,119 when this happens the amygdala the part 1160 00:42:18,710 --> 00:42:16,240 of your brain that deals with 1161 00:42:20,550 --> 00:42:18,720 identifying threats freaks out and 1162 00:42:22,630 --> 00:42:20,560 triggers a fight or flight response that 1163 00:42:24,390 --> 00:42:22,640 causes feelings of extreme fear in the 1164 00:42:27,030 --> 00:42:24,400 sleeper and in this state of 1165 00:42:29,349 --> 00:42:27,040 semi-wakefulness people can still have 1166 00:42:32,069 --> 00:42:29,359 dreamlike hallucinations which often 1167 00:42:33,510 --> 00:42:32,079 take on terrifying forms because of the 1168 00:42:34,790 --> 00:42:33,520 terror that the person is already 1169 00:42:36,870 --> 00:42:34,800 experiencing 1170 00:42:39,430 --> 00:42:36,880 and while these hallucinations can vary 1171 00:42:41,109 --> 00:42:39,440 wildly there are a lot of similarities 1172 00:42:44,069 --> 00:42:41,119 between common descriptions of sleep 1173 00:42:46,309 --> 00:42:44,079 paralysis and reports of alien abduction 1174 00:42:48,950 --> 00:42:46,319 people often report awakening to find a 1175 00:42:51,030 --> 00:42:48,960 malevolent intruder standing over them 1176 00:42:53,109 --> 00:42:51,040 feelings of extreme fear 1177 00:42:55,430 --> 00:42:53,119 feelings of being pulled or dragged out 1178 00:42:57,990 --> 00:42:55,440 of their bed and even experiences that 1179 00:43:00,150 --> 00:42:58,000 sound very similar to the grotesque and 1180 00:43:02,630 --> 00:43:00,160 often weirdly sexual experiments and 1181 00:43:03,990 --> 00:43:02,640 procedures that people report during an 1182 00:43:05,750 --> 00:43:04,000 alien abduction 1183 00:43:07,990 --> 00:43:05,760 so many people believe that alien 1184 00:43:09,510 --> 00:43:08,000 abductions are just misidentified cases 1185 00:43:10,950 --> 00:43:09,520 of sleep paralysis 1186 00:43:12,470 --> 00:43:10,960 and there's other evidence that this 1187 00:43:14,069 --> 00:43:12,480 could be the case beyond just the 1188 00:43:15,270 --> 00:43:14,079 similarities of the experiences 1189 00:43:17,190 --> 00:43:15,280 themselves 1190 00:43:19,430 --> 00:43:17,200 a significant number of people who claim 1191 00:43:21,190 --> 00:43:19,440 to have been abducted by aliens say that 1192 00:43:23,109 --> 00:43:21,200 they have had this experience multiple 1193 00:43:24,950 --> 00:43:23,119 times throughout their life and these 1194 00:43:26,950 --> 00:43:24,960 experiences often seem to run in 1195 00:43:29,190 --> 00:43:26,960 families where multiple family members 1196 00:43:30,950 --> 00:43:29,200 over multiple generations claim to have 1197 00:43:32,950 --> 00:43:30,960 experienced abduction 1198 00:43:35,270 --> 00:43:32,960 sleep paralysis more or less follows the 1199 00:43:37,190 --> 00:43:35,280 same pattern with around 40 percent of 1200 00:43:39,349 --> 00:43:37,200 people experiencing sleep paralysis at 1201 00:43:41,349 --> 00:43:39,359 least once in their lifetime and a much 1202 00:43:44,069 --> 00:43:41,359 smaller percentage of people about six 1203 00:43:46,309 --> 00:43:44,079 percent experiencing multiple episodes 1204 00:43:47,109 --> 00:43:46,319 of sleep paralysis over long periods of 1205 00:43:49,030 --> 00:43:47,119 time 1206 00:43:51,349 --> 00:43:49,040 and there's even evidence now that sleep 1207 00:43:53,430 --> 00:43:51,359 paralysis likely has a genetic component 1208 00:43:55,910 --> 00:43:53,440 suggesting that it could run in families 1209 00:43:57,829 --> 00:43:55,920 just like abduction experiences 1210 00:44:00,390 --> 00:43:57,839 however one glaring problem with this 1211 00:44:01,750 --> 00:44:00,400 theory is that not all alien abductees 1212 00:44:03,270 --> 00:44:01,760 claimed to have been taken at night 1213 00:44:05,430 --> 00:44:03,280 while they were sleeping 1214 00:44:07,270 --> 00:44:05,440 so while sleep paralysis could offer a 1215 00:44:08,630 --> 00:44:07,280 solid explanation for many alien 1216 00:44:10,470 --> 00:44:08,640 abduction cases 1217 00:44:12,550 --> 00:44:10,480 it can't explain all of them 1218 00:44:14,150 --> 00:44:12,560 so what else could be going on here 1219 00:44:15,829 --> 00:44:14,160 let's look at the example of what is 1220 00:44:18,069 --> 00:44:15,839 largely considered to be the first 1221 00:44:20,309 --> 00:44:18,079 reported case of alien abduction the 1222 00:44:23,510 --> 00:44:20,319 betty and barney hill incident in 1223 00:44:26,069 --> 00:44:23,520 september 1961 married couple betty and 1224 00:44:27,990 --> 00:44:26,079 barney hill were driving down a dark and 1225 00:44:29,190 --> 00:44:28,000 winding country road in new hampshire's 1226 00:44:31,510 --> 00:44:29,200 white mountains 1227 00:44:33,190 --> 00:44:31,520 they hadn't seen another car for miles 1228 00:44:34,870 --> 00:44:33,200 but the couple started to notice a 1229 00:44:36,390 --> 00:44:34,880 bright light in the sky that seemed to 1230 00:44:37,750 --> 00:44:36,400 be following them 1231 00:44:40,230 --> 00:44:37,760 the next thing they remembered was 1232 00:44:42,150 --> 00:44:40,240 arriving home in portsmouth at dawn 1233 00:44:45,030 --> 00:44:42,160 they were dirty their watches had 1234 00:44:47,270 --> 00:44:45,040 stopped betty's dress was torn and there 1235 00:44:48,870 --> 00:44:47,280 were two hours of the drive that neither 1236 00:44:50,309 --> 00:44:48,880 of them could remember 1237 00:44:51,990 --> 00:44:50,319 the hills sought the help of a 1238 00:44:54,630 --> 00:44:52,000 psychiatrist to help them understand 1239 00:44:57,109 --> 00:44:54,640 this terrifying and unsettling incident 1240 00:44:59,349 --> 00:44:57,119 and under hypnosis they claim to have 1241 00:45:01,750 --> 00:44:59,359 recovered memories of being abducted by 1242 00:45:04,230 --> 00:45:01,760 gray beings with large black eyes who 1243 00:45:06,390 --> 00:45:04,240 took them into a metallic disk shaped 1244 00:45:07,829 --> 00:45:06,400 craft the betty said was roughly the 1245 00:45:09,829 --> 00:45:07,839 size of their house 1246 00:45:11,910 --> 00:45:09,839 on the ship they were subjected to an 1247 00:45:13,990 --> 00:45:11,920 examination before their memories were 1248 00:45:16,150 --> 00:45:14,000 erased and they were returned home 1249 00:45:18,390 --> 00:45:16,160 in many ways this story has become the 1250 00:45:19,990 --> 00:45:18,400 blueprint for alien abduction 1251 00:45:22,069 --> 00:45:20,000 despite the stunning variety of 1252 00:45:23,750 --> 00:45:22,079 differences between abduction stories 1253 00:45:26,390 --> 00:45:23,760 there are certain elements of the hills 1254 00:45:28,870 --> 00:45:26,400 story that pop up again and again 1255 00:45:31,030 --> 00:45:28,880 a bright light in the sky a metallic and 1256 00:45:33,829 --> 00:45:31,040 often disc shaped craft 1257 00:45:35,829 --> 00:45:33,839 gray beings with large black eyes 1258 00:45:37,190 --> 00:45:35,839 failure of clocks and other machinery 1259 00:45:38,950 --> 00:45:37,200 and electronics 1260 00:45:40,950 --> 00:45:38,960 missing chunks of time 1261 00:45:42,390 --> 00:45:40,960 and being the subject of examinations 1262 00:45:44,069 --> 00:45:42,400 and experiments 1263 00:45:46,950 --> 00:45:44,079 and also like with the betty and barney 1264 00:45:48,950 --> 00:45:46,960 hill incident many abductees are only 1265 00:45:51,750 --> 00:45:48,960 able to initially access memories of 1266 00:45:53,349 --> 00:45:51,760 these incidents through hypnosis which 1267 00:45:55,349 --> 00:45:53,359 complicates things 1268 00:45:57,270 --> 00:45:55,359 there is a lot of controversy around the 1269 00:45:58,950 --> 00:45:57,280 use of hypnosis to recover lost or 1270 00:46:01,030 --> 00:45:58,960 repressed memories 1271 00:46:02,870 --> 00:46:01,040 some psychologists even question whether 1272 00:46:04,630 --> 00:46:02,880 it's even actually possible to banish 1273 00:46:07,109 --> 00:46:04,640 memories to your unconscious mind and 1274 00:46:09,589 --> 00:46:07,119 only become aware of them under hypnosis 1275 00:46:11,270 --> 00:46:09,599 because memories are entirely subjective 1276 00:46:13,190 --> 00:46:11,280 and there's no way to know definitively 1277 00:46:15,190 --> 00:46:13,200 what another person remembers or doesn't 1278 00:46:16,630 --> 00:46:15,200 remember at any given time 1279 00:46:19,510 --> 00:46:16,640 the scientific evidence for this 1280 00:46:21,510 --> 00:46:19,520 phenomenon is dubious at best 1281 00:46:23,430 --> 00:46:21,520 and even if the skeptics are wrong and 1282 00:46:25,030 --> 00:46:23,440 it is possible to entirely forget a 1283 00:46:26,470 --> 00:46:25,040 traumatic event and then recover it 1284 00:46:28,309 --> 00:46:26,480 under hypnosis 1285 00:46:29,750 --> 00:46:28,319 there is the added layer of complication 1286 00:46:31,910 --> 00:46:29,760 that comes from the fact that there's 1287 00:46:33,990 --> 00:46:31,920 considerable evidence that it's possible 1288 00:46:36,390 --> 00:46:34,000 to implant false memories into a 1289 00:46:39,670 --> 00:46:36,400 person's mind through hypnosis 1290 00:46:42,470 --> 00:46:39,680 for example in 2011 a woman named lisa 1291 00:46:44,630 --> 00:46:42,480 nassef of saint paul minnesota sued her 1292 00:46:46,550 --> 00:46:44,640 former therapist mark schwartz and 1293 00:46:48,470 --> 00:46:46,560 castlewood treatment center 1294 00:46:50,550 --> 00:46:48,480 saying that he had falsely implanted 1295 00:46:51,990 --> 00:46:50,560 memories during hypnosis that made her 1296 00:46:54,470 --> 00:46:52,000 believe that she had been part of a 1297 00:46:57,190 --> 00:46:54,480 satanic cult while receiving treatment 1298 00:46:59,349 --> 00:46:57,200 for anorexia nasa claimed that she had 1299 00:47:01,430 --> 00:46:59,359 experienced extreme anguish and was 1300 00:47:03,109 --> 00:47:01,440 isolated from her family and friends 1301 00:47:05,109 --> 00:47:03,119 because schwartz had made her believe 1302 00:47:07,589 --> 00:47:05,119 that her family and friends were members 1303 00:47:10,309 --> 00:47:07,599 of the satanic cult who had subjected 1304 00:47:12,870 --> 00:47:10,319 her to ritualistic abuse including 1305 00:47:14,710 --> 00:47:12,880 forcing her to eat babies 1306 00:47:16,710 --> 00:47:14,720 it wasn't until she left the facility 1307 00:47:18,870 --> 00:47:16,720 and began to connect with multiple other 1308 00:47:20,790 --> 00:47:18,880 patients who also believed that they had 1309 00:47:23,349 --> 00:47:20,800 recovered memories of being abused by a 1310 00:47:25,030 --> 00:47:23,359 satanic cult that lisa began to question 1311 00:47:26,950 --> 00:47:25,040 these recovered memories 1312 00:47:28,870 --> 00:47:26,960 after all what are the chances that 1313 00:47:31,750 --> 00:47:28,880 multiple people in this one small 1314 00:47:33,109 --> 00:47:31,760 facility had this exact same bizarre 1315 00:47:35,030 --> 00:47:33,119 experience 1316 00:47:37,670 --> 00:47:35,040 this questioning eventually led to the 1317 00:47:40,150 --> 00:47:37,680 lawsuit by nassif along with lawsuits by 1318 00:47:41,510 --> 00:47:40,160 three other unnamed women including one 1319 00:47:43,670 --> 00:47:41,520 who had come home from the treatment 1320 00:47:46,069 --> 00:47:43,680 center with memories of horrific sexual 1321 00:47:48,790 --> 00:47:46,079 abuse by a neighbor that her family says 1322 00:47:50,630 --> 00:47:48,800 logistically just couldn't have occurred 1323 00:47:52,549 --> 00:47:50,640 dr schwartz and castlewood treatment 1324 00:47:54,230 --> 00:47:52,559 center denied these claims 1325 00:47:56,870 --> 00:47:54,240 all four lawsuits were settled out of 1326 00:47:58,549 --> 00:47:56,880 court two years later in 2013. 1327 00:48:00,790 --> 00:47:58,559 many cases similar to this one have 1328 00:48:02,870 --> 00:48:00,800 occurred over the past several decades 1329 00:48:04,549 --> 00:48:02,880 including the infamous satanic panic of 1330 00:48:06,390 --> 00:48:04,559 the 80s and 90s 1331 00:48:07,829 --> 00:48:06,400 many of these cases have been debunked 1332 00:48:09,910 --> 00:48:07,839 and even more have been called into 1333 00:48:12,069 --> 00:48:09,920 serious question due to the lack of 1334 00:48:13,510 --> 00:48:12,079 evidence to support the validity of the 1335 00:48:14,549 --> 00:48:13,520 memories people have claimed to have 1336 00:48:16,470 --> 00:48:14,559 recovered 1337 00:48:18,549 --> 00:48:16,480 so it seems likely that at least in some 1338 00:48:20,230 --> 00:48:18,559 of these cases where people recover lost 1339 00:48:21,349 --> 00:48:20,240 memories that there's something deeper 1340 00:48:22,790 --> 00:48:21,359 going on 1341 00:48:24,790 --> 00:48:22,800 could this be the case with betty and 1342 00:48:27,030 --> 00:48:24,800 barney hill and other people who claim 1343 00:48:28,230 --> 00:48:27,040 to have experienced alien abduction 1344 00:48:30,390 --> 00:48:28,240 could their memories have been 1345 00:48:32,150 --> 00:48:30,400 intentionally fabricated or even 1346 00:48:33,510 --> 00:48:32,160 implanted into their minds during 1347 00:48:35,910 --> 00:48:33,520 hypnosis 1348 00:48:37,990 --> 00:48:35,920 it's hard to say but it seems like it's 1349 00:48:40,069 --> 00:48:38,000 probably possible and that's what makes 1350 00:48:41,750 --> 00:48:40,079 it so difficult to come to any clear 1351 00:48:44,470 --> 00:48:41,760 conclusion on the alien abduction 1352 00:48:46,390 --> 00:48:44,480 phenomenon and what it really represents 1353 00:48:47,910 --> 00:48:46,400 it's a highly subjective and messy 1354 00:48:49,910 --> 00:48:47,920 business to try to come up with an 1355 00:48:52,230 --> 00:48:49,920 answer that satisfies all the twists and 1356 00:48:54,630 --> 00:48:52,240 turns of this bizarre phenomenon and 1357 00:48:57,109 --> 00:48:54,640 likely there is no simple answer 1358 00:48:59,270 --> 00:48:57,119 however there is one aspect of the alien 1359 00:49:01,349 --> 00:48:59,280 abduction phenomenon that is especially 1360 00:49:03,589 --> 00:49:01,359 compelling and also deeply relevant to 1361 00:49:05,190 --> 00:49:03,599 the alien question and it's worth taking 1362 00:49:07,030 --> 00:49:05,200 a minute to explore 1363 00:49:09,030 --> 00:49:07,040 and that is the fact that in the vast 1364 00:49:12,230 --> 00:49:09,040 majority of alleged alien abduction 1365 00:49:15,109 --> 00:49:12,240 cases the aliens that abductees report 1366 00:49:17,589 --> 00:49:15,119 seeing are all similar in one very eerie 1367 00:49:18,790 --> 00:49:17,599 and seemingly impossible way they look 1368 00:49:20,790 --> 00:49:18,800 like us 1369 00:49:23,030 --> 00:49:20,800 many abductees claim to have encountered 1370 00:49:25,190 --> 00:49:23,040 gray big-eyed beings similar to those 1371 00:49:27,910 --> 00:49:25,200 reported by betty and barney hill 1372 00:49:30,549 --> 00:49:27,920 often referred to as the grays 1373 00:49:32,309 --> 00:49:30,559 some abductees report seeing tall grays 1374 00:49:33,990 --> 00:49:32,319 others see short grays that are only 1375 00:49:36,309 --> 00:49:34,000 about three feet tall 1376 00:49:39,349 --> 00:49:36,319 some see reptilian beings while others 1377 00:49:41,430 --> 00:49:39,359 see tall blonde human looking beings but 1378 00:49:43,750 --> 00:49:41,440 in the vast majority of cases these 1379 00:49:45,670 --> 00:49:43,760 various alien species despite their 1380 00:49:49,030 --> 00:49:45,680 differing appearances are still 1381 00:49:51,349 --> 00:49:49,040 distinctly and undeniably humanoid 1382 00:49:53,510 --> 00:49:51,359 by and large they have two eyes two ears 1383 00:49:55,990 --> 00:49:53,520 a mouth and a nose they have two arms 1384 00:49:58,470 --> 00:49:56,000 and two legs they walk upright 1385 00:50:01,430 --> 00:49:58,480 their entire body has the basic schema 1386 00:50:03,510 --> 00:50:01,440 of a human body and for many people that 1387 00:50:05,589 --> 00:50:03,520 right there is evidence that the alien 1388 00:50:08,150 --> 00:50:05,599 abduction phenomena must be the product 1389 00:50:09,430 --> 00:50:08,160 of sleep paralysis false memories or 1390 00:50:11,750 --> 00:50:09,440 even a hoax 1391 00:50:13,349 --> 00:50:11,760 basically anything except for actual 1392 00:50:15,510 --> 00:50:13,359 extraterrestrials 1393 00:50:17,349 --> 00:50:15,520 because when you think about it what are 1394 00:50:19,270 --> 00:50:17,359 the actual chances that beings from 1395 00:50:19,990 --> 00:50:19,280 another planet would look so much like 1396 00:50:22,309 --> 00:50:20,000 us 1397 00:50:24,390 --> 00:50:22,319 if evolution happens as the result of a 1398 00:50:26,230 --> 00:50:24,400 mind-bending number of random mutations 1399 00:50:28,069 --> 00:50:26,240 over time and then those genes are 1400 00:50:30,390 --> 00:50:28,079 selected based on their ability to help 1401 00:50:32,950 --> 00:50:30,400 a particular species better thrive in a 1402 00:50:34,790 --> 00:50:32,960 particular environment how likely is it 1403 00:50:36,790 --> 00:50:34,800 that beings that look so similar to 1404 00:50:38,950 --> 00:50:36,800 humans would evolve on a completely 1405 00:50:40,790 --> 00:50:38,960 different planet just think about how 1406 00:50:42,309 --> 00:50:40,800 different a human is from animals that 1407 00:50:44,790 --> 00:50:42,319 have evolved to live in the extreme 1408 00:50:46,470 --> 00:50:44,800 conditions of the mariana trench and yet 1409 00:50:48,069 --> 00:50:46,480 if you go far back enough we have a 1410 00:50:49,990 --> 00:50:48,079 common ancestor 1411 00:50:51,750 --> 00:50:50,000 how different might a species look that 1412 00:50:53,910 --> 00:50:51,760 evolved on a planet with completely 1413 00:50:56,870 --> 00:50:53,920 different gravity chemical makeup 1414 00:50:58,950 --> 00:50:56,880 atmosphere temperature etc 1415 00:51:01,109 --> 00:50:58,960 it feels logical to assume that if there 1416 00:51:02,950 --> 00:51:01,119 are extraterrestrial beings out there 1417 00:51:04,470 --> 00:51:02,960 they would almost certainly look vastly 1418 00:51:07,670 --> 00:51:04,480 different than anything that we've ever 1419 00:51:09,349 --> 00:51:07,680 seen before and yet surprisingly many 1420 00:51:11,430 --> 00:51:09,359 scientists are beginning to come around 1421 00:51:13,270 --> 00:51:11,440 to the idea that aliens might actually 1422 00:51:15,589 --> 00:51:13,280 look a lot more like us than we would 1423 00:51:17,430 --> 00:51:15,599 assume according to charles cockle a 1424 00:51:19,670 --> 00:51:17,440 professor of astrobiology at the 1425 00:51:22,069 --> 00:51:19,680 university of edinburgh in scotland 1426 00:51:24,150 --> 00:51:22,079 extraterrestrial life might look eerily 1427 00:51:26,390 --> 00:51:24,160 similar to the life that we see on earth 1428 00:51:29,109 --> 00:51:26,400 in cockles book the equations of life 1429 00:51:32,230 --> 00:51:29,119 how physics shapes evolution he suggests 1430 00:51:34,150 --> 00:51:32,240 that a universal biology may exist and 1431 00:51:35,990 --> 00:51:34,160 that life forms on earth could provide 1432 00:51:37,990 --> 00:51:36,000 us with a basic blueprint for the kinds 1433 00:51:40,390 --> 00:51:38,000 of life we are likely to find elsewhere 1434 00:51:42,390 --> 00:51:40,400 in the universe his basic premise is 1435 00:51:45,030 --> 00:51:42,400 that although the genetic mutations that 1436 00:51:46,870 --> 00:51:45,040 fuel evolution are random the particular 1437 00:51:48,790 --> 00:51:46,880 mutations that are selected for through 1438 00:51:50,710 --> 00:51:48,800 natural selection are not 1439 00:51:52,630 --> 00:51:50,720 these mutations are still subject to the 1440 00:51:54,150 --> 00:51:52,640 same laws of physics and are also 1441 00:51:56,950 --> 00:51:54,160 restricted by the conditions and 1442 00:51:59,270 --> 00:51:56,960 materials necessary for life to thrive 1443 00:52:01,030 --> 00:51:59,280 and according to cockle these factors 1444 00:52:02,870 --> 00:52:01,040 narrow the scope of evolution to a 1445 00:52:05,510 --> 00:52:02,880 degree that it's likely that life would 1446 00:52:07,190 --> 00:52:05,520 evolve in similar ways on another planet 1447 00:52:09,030 --> 00:52:07,200 we can see examples of how this might 1448 00:52:10,790 --> 00:52:09,040 work right here on earth 1449 00:52:12,549 --> 00:52:10,800 animals that live in cold environments 1450 00:52:13,990 --> 00:52:12,559 usually have thick fur 1451 00:52:15,829 --> 00:52:14,000 animals that live in the ocean are 1452 00:52:18,230 --> 00:52:15,839 typically hairless and have long sleek 1453 00:52:19,750 --> 00:52:18,240 bodies perfect for swimming in water 1454 00:52:21,589 --> 00:52:19,760 it's obvious just by looking at the 1455 00:52:23,270 --> 00:52:21,599 different species on earth that certain 1456 00:52:24,630 --> 00:52:23,280 environments and conditions tend to 1457 00:52:26,309 --> 00:52:24,640 produce certain body types and 1458 00:52:28,549 --> 00:52:26,319 characteristics 1459 00:52:30,630 --> 00:52:28,559 and despite these many differences there 1460 00:52:32,710 --> 00:52:30,640 are certain distinct similarities that 1461 00:52:35,750 --> 00:52:32,720 the vast majority of life on earth seems 1462 00:52:37,670 --> 00:52:35,760 to share such as bilateral symmetry 1463 00:52:39,430 --> 00:52:37,680 bilateral symmetry basically means that 1464 00:52:41,270 --> 00:52:39,440 you can draw a line down the center of 1465 00:52:42,309 --> 00:52:41,280 an organism and it's the same on both 1466 00:52:44,390 --> 00:52:42,319 sides 1467 00:52:46,390 --> 00:52:44,400 bilateral symmetry is great for things 1468 00:52:48,150 --> 00:52:46,400 like being able to walk or swim in a 1469 00:52:49,430 --> 00:52:48,160 straight line an accurate depth 1470 00:52:51,190 --> 00:52:49,440 perception 1471 00:52:53,510 --> 00:52:51,200 when you try to imagine an animal that 1472 00:52:55,750 --> 00:52:53,520 has any kind of significant asymmetry 1473 00:52:57,829 --> 00:52:55,760 and how it might operate it's easy to 1474 00:52:59,990 --> 00:52:57,839 see how bilateral symmetry could very 1475 00:53:02,790 --> 00:53:00,000 possibly be necessary to the evolution 1476 00:53:04,790 --> 00:53:02,800 of complex and intelligent life forms so 1477 00:53:05,990 --> 00:53:04,800 evolution really might not be as random 1478 00:53:08,150 --> 00:53:06,000 as we think 1479 00:53:09,750 --> 00:53:08,160 more evidence to support this idea comes 1480 00:53:11,589 --> 00:53:09,760 in the form of a concept called 1481 00:53:16,230 --> 00:53:11,599 convergent evolution 1482 00:53:18,230 --> 00:53:16,240 that evolve similar features entirely 1483 00:53:20,790 --> 00:53:18,240 independently from one another 1484 00:53:23,190 --> 00:53:20,800 for example sharks and dolphins look 1485 00:53:25,109 --> 00:53:23,200 very similar despite sharks being an 1486 00:53:27,589 --> 00:53:25,119 egg-laying fish and dolphins being a 1487 00:53:31,349 --> 00:53:27,599 mammal and their last common ancestor 1488 00:53:33,510 --> 00:53:31,359 swam the seas 290 million years ago 1489 00:53:36,069 --> 00:53:33,520 that's 60 million years before the 1490 00:53:38,630 --> 00:53:36,079 earliest dinosaurs appeared on the earth 1491 00:53:40,630 --> 00:53:38,640 even more surprisingly flight appears to 1492 00:53:42,390 --> 00:53:40,640 have evolved separately and at four 1493 00:53:46,470 --> 00:53:42,400 different times in history 1494 00:53:48,069 --> 00:53:46,480 in insects bats birds and pterosaurs 1495 00:53:50,790 --> 00:53:48,079 and the mechanism for how these animals 1496 00:53:53,349 --> 00:53:50,800 fly is virtually identical stranger 1497 00:53:55,589 --> 00:53:53,359 still both octopuses and humans 1498 00:53:59,109 --> 00:53:55,599 separately evolved camera-like eyes with 1499 00:54:01,109 --> 00:53:59,119 an iris a lens and a retina a very exact 1500 00:54:02,870 --> 00:54:01,119 and complex set of structures all of 1501 00:54:05,190 --> 00:54:02,880 which are essential parts of an imaging 1502 00:54:07,630 --> 00:54:05,200 device and this happened despite our 1503 00:54:11,109 --> 00:54:07,640 last common ancestor existing 1504 00:54:12,390 --> 00:54:11,119 750 million years ago all of this is to 1505 00:54:13,870 --> 00:54:12,400 say that although it might be 1506 00:54:15,750 --> 00:54:13,880 counterintuitive to think that 1507 00:54:17,589 --> 00:54:15,760 extraterrestrials could have similar 1508 00:54:20,710 --> 00:54:17,599 features and body structures to humans 1509 00:54:22,390 --> 00:54:20,720 as is reported by most alleged abductees 1510 00:54:24,630 --> 00:54:22,400 the more we learn about how evolution 1511 00:54:26,309 --> 00:54:24,640 actually works the more likely it seems 1512 00:54:27,430 --> 00:54:26,319 that these beings could look very much 1513 00:54:29,750 --> 00:54:27,440 like us 1514 00:54:32,069 --> 00:54:29,760 so i've thrown a ton of information at 1515 00:54:33,990 --> 00:54:32,079 you and yet it probably feels like we're 1516 00:54:35,910 --> 00:54:34,000 no closer to an answer when it comes to 1517 00:54:38,150 --> 00:54:35,920 the question of whether or not ufos 1518 00:54:39,990 --> 00:54:38,160 could be extraterrestrial technology 1519 00:54:41,430 --> 00:54:40,000 than we were when we started 1520 00:54:42,710 --> 00:54:41,440 and that's okay 1521 00:54:44,870 --> 00:54:42,720 if we're going to continue down this 1522 00:54:47,270 --> 00:54:44,880 rabbit hole we need to get cozy with 1523 00:54:49,430 --> 00:54:47,280 ambiguity and uncertainty because there 1524 00:54:51,910 --> 00:54:49,440 are no straightforward answers here 1525 00:54:54,069 --> 00:54:51,920 we can say that it's probable that alien 1526 00:54:55,829 --> 00:54:54,079 life forms exist and that a certain 1527 00:54:57,829 --> 00:54:55,839 percentage of that life though we don't 1528 00:55:00,150 --> 00:54:57,839 know how large or vanishingly small that 1529 00:55:01,750 --> 00:55:00,160 percentage might be has likely evolved 1530 00:55:03,670 --> 00:55:01,760 to a level of intelligence that would 1531 00:55:05,430 --> 00:55:03,680 make space travel possible 1532 00:55:07,190 --> 00:55:05,440 we can say that interstellar space 1533 00:55:08,470 --> 00:55:07,200 travel is theoretically possible and 1534 00:55:10,069 --> 00:55:08,480 that it seems likely that a more 1535 00:55:12,309 --> 00:55:10,079 advanced civilization than ourselves 1536 00:55:13,990 --> 00:55:12,319 could undertake such an enterprise and 1537 00:55:15,670 --> 00:55:14,000 while we can't say with certainty that 1538 00:55:18,150 --> 00:55:15,680 humans have yet encountered any of these 1539 00:55:20,390 --> 00:55:18,160 beings the reports that we do have of 1540 00:55:21,670 --> 00:55:20,400 such alleged encounters are more or less 1541 00:55:23,829 --> 00:55:21,680 in line with what scientists would 1542 00:55:25,750 --> 00:55:23,839 expect these beings to look like 1543 00:55:27,990 --> 00:55:25,760 but is it aliens 1544 00:55:29,829 --> 00:55:28,000 that's hard to say there's this idea in 1545 00:55:33,270 --> 00:55:29,839 math called a transitive property that 1546 00:55:34,549 --> 00:55:33,280 basically says that if a equals b and b 1547 00:55:39,109 --> 00:55:34,559 equals c 1548 00:55:41,750 --> 00:55:39,119 so for example cats are mammals 1549 00:55:43,829 --> 00:55:41,760 mammals are warm-blooded therefore cats 1550 00:55:45,829 --> 00:55:43,839 are warm-blooded and this feels like a 1551 00:55:48,470 --> 00:55:45,839 situation where you could say that if 1552 00:55:51,510 --> 00:55:48,480 ufos are real and if ufos are alien 1553 00:55:54,230 --> 00:55:51,520 technology then aliens must be real 1554 00:55:56,870 --> 00:55:54,240 but that logical leap only works if ufos 1555 00:55:58,710 --> 00:55:56,880 are alien technology and we're not at a 1556 00:56:00,630 --> 00:55:58,720 place where we can assume that 1557 00:56:03,270 --> 00:56:00,640 in fact as we'll discuss in our next 1558 00:56:05,510 --> 00:56:03,280 episode although we tend to equate ufos 1559 00:56:06,789 --> 00:56:05,520 with extraterrestrials there are several 1560 00:56:09,349 --> 00:56:06,799 other possibilities that could 1561 00:56:11,349 --> 00:56:09,359 potentially explain the ufo phenomenon 1562 00:56:13,990 --> 00:56:11,359 and if you listen closely to what former 1563 00:56:15,829 --> 00:56:14,000 atip director lou elizondo and others in 1564 00:56:18,150 --> 00:56:15,839 the disclosure movement with access to 1565 00:56:20,390 --> 00:56:18,160 privileged information are actually 1566 00:56:21,910 --> 00:56:20,400 saying you may begin to wonder if what 1567 00:56:24,309 --> 00:56:21,920 we're dealing with is really of 1568 00:56:26,390 --> 00:56:24,319 extraterrestrial origin listen to lou 1569 00:56:28,549 --> 00:56:26,400 elizondo's response to a question on the 1570 00:56:30,069 --> 00:56:28,559 fade to black podcast when host jimmy 1571 00:56:32,710 --> 00:56:30,079 church asked a question about the 1572 00:56:34,390 --> 00:56:32,720 origins of the infamous tic tac ufo from 1573 00:56:36,549 --> 00:56:34,400 the nimitz incident 1574 00:56:41,510 --> 00:56:36,559 the tic tac 1575 00:56:43,670 --> 00:56:41,520 not of this earth 1576 00:56:47,589 --> 00:56:43,680 the nimitz encounter 1577 00:56:48,710 --> 00:56:47,599 that the tic tac is that not of this 1578 00:56:50,710 --> 00:56:48,720 earth 1579 00:56:52,069 --> 00:56:50,720 jimmy forgive me for saying this i i 1580 00:56:54,630 --> 00:56:52,079 don't want to correct you publicly but 1581 00:56:57,990 --> 00:56:54,640 you're asking the wrong question 1582 00:57:02,150 --> 00:56:58,000 the question should be is the tic tac 1583 00:57:04,789 --> 00:57:02,160 man-made or is the tic tac us or is it 1584 00:57:07,670 --> 00:57:04,799 tic tac us or foreign adversary 1585 00:57:09,829 --> 00:57:07,680 technology the answer is no but when you 1586 00:57:12,230 --> 00:57:09,839 say is it from this earth 1587 00:57:15,750 --> 00:57:12,240 we don't know that's that's you know 1588 00:57:17,270 --> 00:57:15,760 this is why we've always stated before 1589 00:57:18,470 --> 00:57:17,280 from our position 1590 00:57:20,549 --> 00:57:18,480 we don't know if these things are from 1591 00:57:22,390 --> 00:57:20,559 outer space inner space or frankly the 1592 00:57:24,470 --> 00:57:22,400 space in between as you you begin to 1593 00:57:26,710 --> 00:57:24,480 understand the world of quantum physics 1594 00:57:28,870 --> 00:57:26,720 there's a whole lot of reality around us 1595 00:57:30,710 --> 00:57:28,880 and we don't interact with it um you 1596 00:57:32,710 --> 00:57:30,720 know we're used to the newtonian uh 1597 00:57:34,150 --> 00:57:32,720 understanding of the world physics where 1598 00:57:36,309 --> 00:57:34,160 you know gravity and apple falls from a 1599 00:57:37,910 --> 00:57:36,319 tree and then along comes einstein 1600 00:57:39,430 --> 00:57:37,920 several hundred years later and talks 1601 00:57:41,829 --> 00:57:39,440 about this thing called relativity where 1602 00:57:43,589 --> 00:57:41,839 space time is actually flexible and only 1603 00:57:45,750 --> 00:57:43,599 in the last 20 30 years have we really 1604 00:57:47,510 --> 00:57:45,760 begin to explore the world of quantum 1605 00:57:50,230 --> 00:57:47,520 quantum physics the quantum world the 1606 00:57:53,510 --> 00:57:50,240 quantum states and we're realizing all 1607 00:57:55,829 --> 00:57:53,520 these realities as as as opposite as 1608 00:57:57,430 --> 00:57:55,839 they may seem to us are actually very 1609 00:58:00,230 --> 00:57:57,440 much part of the natural environment and 1610 00:58:02,390 --> 00:58:00,240 so my point being there may be realities 1611 00:58:03,349 --> 00:58:02,400 all around us that we simply don't 1612 00:58:05,430 --> 00:58:03,359 perceive 1613 00:58:07,829 --> 00:58:05,440 you know we're very limited as a species 1614 00:58:10,390 --> 00:58:07,839 we live in a three-dimensional space x y 1615 00:58:12,309 --> 00:58:10,400 z axis and time which is a function of i 1616 00:58:15,270 --> 00:58:12,319 guess of the fourth dimension and and 1617 00:58:18,789 --> 00:58:15,280 that's expressed in a linear linear 1618 00:58:20,789 --> 00:58:18,799 if you will linear motion for us 1619 00:58:22,470 --> 00:58:20,799 but that's not to say that there aren't 1620 00:58:24,950 --> 00:58:22,480 other things all around us we sense the 1621 00:58:27,829 --> 00:58:24,960 universe through the five primary senses 1622 00:58:29,030 --> 00:58:27,839 of sight smell touch taste and hearing 1623 00:58:31,270 --> 00:58:29,040 and yet 1624 00:58:33,190 --> 00:58:31,280 we know that we only perceive 1625 00:58:34,789 --> 00:58:33,200 one percent of one percent of the 1626 00:58:36,789 --> 00:58:34,799 universe that's around us 1627 00:58:38,630 --> 00:58:36,799 most of the universe remains completely 1628 00:58:40,789 --> 00:58:38,640 invisible to us and i don't mean the 1629 00:58:43,270 --> 00:58:40,799 universe out there i mean the universe 1630 00:58:45,670 --> 00:58:43,280 right here let me put that into context 1631 00:58:48,549 --> 00:58:45,680 we know less than five percent about our 1632 00:58:49,510 --> 00:58:48,559 deepest oceans right we we 1633 00:58:50,870 --> 00:58:49,520 really don't even have a good 1634 00:58:53,670 --> 00:58:50,880 understanding of what lives in our own 1635 00:58:55,750 --> 00:58:53,680 planet let alone anywhere else 1636 00:58:58,390 --> 00:58:55,760 we when you look at the human being we 1637 00:59:00,470 --> 00:58:58,400 are exactly in the middle of the scale 1638 00:59:02,069 --> 00:59:00,480 of the universe 1639 00:59:03,870 --> 00:59:02,079 if you were to take us being the 1640 00:59:06,230 --> 00:59:03,880 smallest thing and look at the 1641 00:59:08,390 --> 00:59:06,240 grandiosity of the universe which is 1642 00:59:10,710 --> 00:59:08,400 13.5 billion light years in this 1643 00:59:13,190 --> 00:59:10,720 direction and 13.5 billion light years 1644 00:59:15,349 --> 00:59:13,200 in that direction right 27 billion light 1645 00:59:17,030 --> 00:59:15,359 years in distance which is a lot we seem 1646 00:59:20,390 --> 00:59:17,040 pretty small 1647 00:59:23,430 --> 00:59:20,400 by that scale there is equally the same 1648 00:59:26,549 --> 00:59:23,440 amount of space inside of the human body 1649 00:59:28,710 --> 00:59:26,559 there is this entire universe inside of 1650 00:59:30,390 --> 00:59:28,720 us when you talk about not just the 1651 00:59:31,589 --> 00:59:30,400 cells of the body or even the atom if 1652 00:59:33,510 --> 00:59:31,599 you start talking about subatomic 1653 00:59:35,190 --> 00:59:33,520 particles you start talking about muons 1654 00:59:37,190 --> 00:59:35,200 and quarks 1655 00:59:38,870 --> 00:59:37,200 this is reality this is real even though 1656 00:59:41,270 --> 00:59:38,880 we can't interact with it there is this 1657 00:59:42,789 --> 00:59:41,280 entire universe inside each and every 1658 00:59:43,670 --> 00:59:42,799 one of us now i don't want to get you 1659 00:59:46,470 --> 00:59:43,680 know 1660 00:59:48,630 --> 00:59:46,480 to off off the beaten path here but my 1661 00:59:51,910 --> 00:59:48,640 point being is that 1662 00:59:54,230 --> 00:59:51,920 there is so much we don't understand 1663 00:59:55,190 --> 00:59:54,240 about the universe let alone our own 1664 00:59:59,670 --> 00:59:55,200 selves 1665 01:00:03,430 --> 00:59:59,680 so i think it is it is foolhardy for us 1666 01:00:04,789 --> 01:00:03,440 to even begin to say definitively that 1667 01:00:06,710 --> 01:00:04,799 well 1668 01:00:08,789 --> 01:00:06,720 the buck stops with us 1669 01:00:10,789 --> 01:00:08,799 crazy right and then there was a 1670 01:00:13,430 --> 01:00:10,799 puzzling and intriguing answer that he 1671 01:00:15,349 --> 01:00:13,440 gave on that ufo podcast when he was 1672 01:00:17,270 --> 01:00:15,359 asked about a previous statement he had 1673 01:00:21,750 --> 01:00:17,280 made where he said basically 1674 01:00:22,950 --> 01:00:21,760 what if it's not mankind but mankind's 1675 01:00:24,710 --> 01:00:22,960 listen 1676 01:00:25,990 --> 01:00:24,720 you've led me very nicely into this next 1677 01:00:28,069 --> 01:00:26,000 question because i'm actually going to 1678 01:00:30,549 --> 01:00:28,079 throw back at you a question you once 1679 01:00:31,910 --> 01:00:30,559 asked on a piece you'd run the youtube 1680 01:00:33,750 --> 01:00:31,920 videos out there i'm not too sure of the 1681 01:00:34,950 --> 01:00:33,760 context behind it but 1682 01:00:36,150 --> 01:00:34,960 it was certainly something that stuck 1683 01:00:38,630 --> 01:00:36,160 with me and a lot of other people as 1684 01:00:41,030 --> 01:00:38,640 well and you asked once for people to 1685 01:00:42,470 --> 01:00:41,040 consider what if it wasn't mankind but 1686 01:00:44,230 --> 01:00:42,480 mankind's 1687 01:00:45,589 --> 01:00:44,240 and what would that mean for us 1688 01:00:47,349 --> 01:00:45,599 could you elaborate on that because 1689 01:00:49,510 --> 01:00:47,359 that's something people go back to more 1690 01:00:50,950 --> 01:00:49,520 and more and as 1691 01:00:52,630 --> 01:00:50,960 more or less hypothetical that's what 1692 01:00:54,630 --> 01:00:52,640 i'm going to put it as but people would 1693 01:00:56,390 --> 01:00:54,640 assume you come from a better 1694 01:00:57,829 --> 01:00:56,400 understanding a place of knowledge than 1695 01:01:01,030 --> 01:00:57,839 most would 1696 01:01:02,870 --> 01:01:01,040 yeah wow uh 1697 01:01:05,670 --> 01:01:02,880 boy you're getting some really really 1698 01:01:07,510 --> 01:01:05,680 good and personal questions um 1699 01:01:09,750 --> 01:01:07,520 let me see if i can answer that in a 1700 01:01:11,990 --> 01:01:09,760 meaningful way without leading the 1701 01:01:13,750 --> 01:01:12,000 witness we live in a three-dimensional 1702 01:01:17,030 --> 01:01:13,760 world 1703 01:01:19,750 --> 01:01:17,040 where time is a function of the fourth 1704 01:01:21,670 --> 01:01:19,760 dimension if you will and we experience 1705 01:01:23,750 --> 01:01:21,680 time as being linear it's a linear 1706 01:01:26,789 --> 01:01:23,760 function or a process 1707 01:01:28,390 --> 01:01:26,799 but we now know in the quantum world 1708 01:01:32,309 --> 01:01:28,400 that 1709 01:01:34,069 --> 01:01:32,319 time because of the work of einstein and 1710 01:01:36,549 --> 01:01:34,079 others that space and time are are 1711 01:01:38,630 --> 01:01:36,559 joined together and we know that space 1712 01:01:40,230 --> 01:01:38,640 time is flexible it's called relativity 1713 01:01:42,150 --> 01:01:40,240 we see it around massive objects all the 1714 01:01:43,430 --> 01:01:42,160 time not just earth but the sun black 1715 01:01:46,549 --> 01:01:43,440 holes 1716 01:01:48,630 --> 01:01:46,559 so the linear universe that 1717 01:01:50,950 --> 01:01:48,640 we experience 1718 01:01:53,510 --> 01:01:50,960 to some degree really isn't and when you 1719 01:01:55,430 --> 01:01:53,520 look at the quantum state of things even 1720 01:01:57,270 --> 01:01:55,440 an electron for example 1721 01:01:59,670 --> 01:01:57,280 uh you learned in high school that an 1722 01:02:01,750 --> 01:01:59,680 electron orbits an atom and we now know 1723 01:02:03,349 --> 01:02:01,760 that's really a very simplistic way of 1724 01:02:05,029 --> 01:02:03,359 looking at things that the electron 1725 01:02:07,190 --> 01:02:05,039 doesn't orbit around the atom in fact 1726 01:02:09,510 --> 01:02:07,200 it's called an electron cloud because 1727 01:02:11,589 --> 01:02:09,520 the electron is is 1728 01:02:13,589 --> 01:02:11,599 both all in all places and none of the 1729 01:02:14,950 --> 01:02:13,599 places all at the same time it's kind of 1730 01:02:16,470 --> 01:02:14,960 weird but 1731 01:02:19,029 --> 01:02:16,480 my point being is that if you were to 1732 01:02:20,630 --> 01:02:19,039 look at time and think of a think of a 1733 01:02:22,069 --> 01:02:20,640 cigarette burning 1734 01:02:23,990 --> 01:02:22,079 when you look at the notion of the 1735 01:02:26,150 --> 01:02:24,000 future most people would would define 1736 01:02:28,789 --> 01:02:26,160 the future as those events that have not 1737 01:02:30,950 --> 01:02:28,799 yet happened and the past is defined by 1738 01:02:32,710 --> 01:02:30,960 events that have already happened 1739 01:02:35,670 --> 01:02:32,720 and when you look at that construct then 1740 01:02:37,829 --> 01:02:35,680 the definition of the present must be a 1741 01:02:40,589 --> 01:02:37,839 a moment in space time probably measured 1742 01:02:42,630 --> 01:02:40,599 in playing time very infinitesimal and 1743 01:02:45,670 --> 01:02:42,640 infinitesimally small 1744 01:02:48,150 --> 01:02:45,680 moment of space time where the future is 1745 01:02:50,710 --> 01:02:48,160 transitioning into the past it's it's 1746 01:02:53,190 --> 01:02:50,720 it's it's not a point in time it's a 1747 01:02:54,630 --> 01:02:53,200 process it's an event that's occurring 1748 01:02:56,789 --> 01:02:54,640 so a way to look at that in late 1749 01:02:57,829 --> 01:02:56,799 perspective is think of a cigarette or a 1750 01:03:03,589 --> 01:02:57,839 cigar 1751 01:03:05,349 --> 01:03:03,599 already burnt to ash is the past 1752 01:03:07,510 --> 01:03:05,359 that part of the cigar cigarette or 1753 01:03:10,069 --> 01:03:07,520 cigar that has not yet burned 1754 01:03:11,430 --> 01:03:10,079 is the future and the cherry that moment 1755 01:03:14,230 --> 01:03:11,440 of ignition 1756 01:03:16,549 --> 01:03:14,240 that spark of where the future is now be 1757 01:03:18,230 --> 01:03:16,559 getting consumed and becoming the past 1758 01:03:20,870 --> 01:03:18,240 that is the present and we as human 1759 01:03:23,029 --> 01:03:20,880 beings we live at that moment all of our 1760 01:03:26,470 --> 01:03:23,039 hopes our fears our memories love hate 1761 01:03:29,670 --> 01:03:26,480 good bad all that is an expression 1762 01:03:30,510 --> 01:03:29,680 of of an experience that occurs 1763 01:03:32,470 --> 01:03:30,520 at an 1764 01:03:34,309 --> 01:03:32,480 infinitesimally small moment of space 1765 01:03:36,870 --> 01:03:34,319 time like i said probably measured in 1766 01:03:41,109 --> 01:03:38,870 that is how we we 1767 01:03:42,950 --> 01:03:41,119 we experience the present but what if 1768 01:03:45,510 --> 01:03:42,960 there were 1769 01:03:47,829 --> 01:03:45,520 things that had the ability to 1770 01:03:49,109 --> 01:03:47,839 experience where where the present was a 1771 01:03:52,630 --> 01:03:49,119 much bigger 1772 01:03:54,150 --> 01:03:52,640 transition where more elements of the 1773 01:03:55,589 --> 01:03:54,160 future in the past 1774 01:03:57,109 --> 01:03:55,599 are experienced 1775 01:03:59,029 --> 01:03:57,119 as in the present 1776 01:04:03,430 --> 01:03:59,039 and can do that also physically right so 1777 01:04:06,230 --> 01:04:03,440 it's not just not just uh uh a an idea 1778 01:04:08,789 --> 01:04:06,240 but uh what if there were species out 1779 01:04:11,109 --> 01:04:08,799 there that that experienced the universe 1780 01:04:13,270 --> 01:04:11,119 uh in it with it with an extra level of 1781 01:04:14,630 --> 01:04:13,280 dimension and so you and i are having 1782 01:04:16,230 --> 01:04:14,640 this conversation right now with your 1783 01:04:18,950 --> 01:04:16,240 audience and we're having this 1784 01:04:20,390 --> 01:04:18,960 conversation right here right now but if 1785 01:04:22,150 --> 01:04:20,400 i were to have the ability to have this 1786 01:04:24,549 --> 01:04:22,160 conversation right here but five minutes 1787 01:04:26,230 --> 01:04:24,559 ago or five minutes from now 1788 01:04:28,069 --> 01:04:26,240 we would never meet we'd be like two 1789 01:04:29,029 --> 01:04:28,079 ships passing in the night 1790 01:04:30,789 --> 01:04:29,039 um 1791 01:04:33,270 --> 01:04:30,799 is it possible that maybe some of these 1792 01:04:35,910 --> 01:04:33,280 things these uap have the ability 1793 01:04:37,990 --> 01:04:35,920 we experience in them we we experience 1794 01:04:40,390 --> 01:04:38,000 them when they are right here right now 1795 01:04:41,589 --> 01:04:40,400 and every other every other time we we 1796 01:04:45,190 --> 01:04:41,599 don't because we're simply not 1797 01:04:48,630 --> 01:04:45,200 intersecting uh with that with that uh 1798 01:04:50,549 --> 01:04:48,640 extra dimensional space of of of time 1799 01:04:52,870 --> 01:04:50,559 um you know when you look at that 1800 01:04:55,510 --> 01:04:52,880 cigarette or cigar burning 1801 01:04:57,190 --> 01:04:55,520 you'll notice that it never burns evenly 1802 01:04:58,950 --> 01:04:57,200 when you look at it up close and you can 1803 01:05:00,630 --> 01:04:58,960 kind of remove the glare and the flare 1804 01:05:03,109 --> 01:05:00,640 from the from the burn 1805 01:05:05,910 --> 01:05:03,119 we realize that that 1806 01:05:07,990 --> 01:05:05,920 there are portions of the future of the 1807 01:05:09,109 --> 01:05:08,000 portions of the cigar that haven't 1808 01:05:11,510 --> 01:05:09,119 burned yet 1809 01:05:13,829 --> 01:05:11,520 uh behind portions of the cigar that 1810 01:05:15,029 --> 01:05:13,839 already has burned it's it's not an even 1811 01:05:16,230 --> 01:05:15,039 burn 1812 01:05:21,270 --> 01:05:16,240 quantum 1813 01:05:23,510 --> 01:05:21,280 theory uh is beginning to to show some 1814 01:05:25,670 --> 01:05:23,520 of the models for that so 1815 01:05:27,430 --> 01:05:25,680 um i know i'm going in a very 1816 01:05:28,789 --> 01:05:27,440 long-winded roundabout way to answer 1817 01:05:30,789 --> 01:05:28,799 your question about what i meant about 1818 01:05:32,549 --> 01:05:30,799 mankind 1819 01:05:33,829 --> 01:05:32,559 but i guess my answer to that is it's 1820 01:05:37,109 --> 01:05:33,839 limitless 1821 01:05:39,270 --> 01:05:37,119 we every time we put a limitation on 1822 01:05:40,309 --> 01:05:39,280 mother nature she defies 1823 01:05:44,069 --> 01:05:40,319 our 1824 01:05:46,470 --> 01:05:44,079 so that's where we'll pick up next time 1825 01:05:49,430 --> 01:05:46,480 with the idea that the extraterrestrial 1826 01:05:51,109 --> 01:05:49,440 hypothesis for the origin of ufos is 1827 01:05:53,029 --> 01:05:51,119 actually one of the least bizarre and 1828 01:05:54,950 --> 01:05:53,039 exotic explanations 1829 01:05:57,029 --> 01:05:54,960 and that what we're dealing with here 1830 01:05:59,109 --> 01:05:57,039 might lead us to answers that shatter 1831 01:06:01,109 --> 01:05:59,119 our paradigms in ways that could make us 1832 01:06:03,750 --> 01:06:01,119 wish for something as simple and 1833 01:06:07,440 --> 01:06:03,760 clear-cut as an alien invasion