1 00:00:09,919 --> 00:00:05,690 thank you it's an honor to give I think 2 00:00:12,200 --> 00:00:09,929 the last talk and thank you for sticking 3 00:00:15,259 --> 00:00:12,210 around I'll try to be somewhat 4 00:00:26,599 --> 00:00:15,269 interesting if I can I want to talk 5 00:00:39,110 --> 00:00:26,609 about talking about why this doesn't 6 00:00:44,510 --> 00:00:39,120 work all right then all right we got one 7 00:00:48,139 --> 00:00:44,520 slide that's good well I want to talk 8 00:00:50,869 --> 00:00:48,149 about where it all starts the 9 00:00:52,310 --> 00:00:50,879 foundations the the the deeper 10 00:00:54,200 --> 00:00:52,320 understanding that we would all like 11 00:00:56,029 --> 00:00:54,210 about what's going on in the world and 12 00:00:58,549 --> 00:00:56,039 particularly what's going on in the 13 00:01:02,029 --> 00:00:58,559 universe as a whole how it got this way 14 00:01:04,189 --> 00:01:02,039 and how any understanding that we might 15 00:01:06,679 --> 00:01:04,199 have of the universe as a whole could be 16 00:01:08,539 --> 00:01:06,689 applied locally to our own situations 17 00:01:12,399 --> 00:01:08,549 and to some of the phenomenon that we're 18 00:01:20,210 --> 00:01:17,140 Bernie talked about the constants of the 19 00:01:22,429 --> 00:01:20,220 universe and physical laws of the 20 00:01:24,880 --> 00:01:22,439 universe and I won't say a whole lot 21 00:01:27,230 --> 00:01:24,890 more about that but it's worth just 22 00:01:29,690 --> 00:01:27,240 reflecting on the fact that it seems 23 00:01:31,850 --> 00:01:29,700 that there are a few numbers a few 24 00:01:34,069 --> 00:01:31,860 constants a few parameters that 25 00:01:38,510 --> 00:01:34,079 determine a great deal of what goes on 26 00:01:40,330 --> 00:01:38,520 in the universe and the phenomenon that 27 00:01:44,060 --> 00:01:40,340 takes place within it and these 28 00:01:47,120 --> 00:01:44,070 constants seem at least to be somewhat 29 00:01:49,429 --> 00:01:47,130 independent and rather arbitrary and yet 30 00:01:53,569 --> 00:01:49,439 we know that in several cases these 31 00:01:55,219 --> 00:01:53,579 constants are very finely tuned to 32 00:01:57,499 --> 00:01:55,229 support the kind of universe that we see 33 00:01:59,569 --> 00:01:57,509 in the life that we experience here and 34 00:02:01,370 --> 00:01:59,579 if they were different the universe 35 00:02:05,139 --> 00:02:01,380 would have been different and we would 36 00:02:07,160 --> 00:02:05,149 not have evolved to have noticed this so 37 00:02:09,050 --> 00:02:07,170 there's a question about how it got 38 00:02:11,510 --> 00:02:09,060 there how those constants got that way 39 00:02:13,610 --> 00:02:11,520 and by the way how did all that stuff 40 00:02:16,160 --> 00:02:13,620 get out there in particular 41 00:02:19,759 --> 00:02:16,170 places how did all this get to be the 42 00:02:21,380 --> 00:02:19,769 way it is even if we knew what those 43 00:02:22,640 --> 00:02:21,390 constants those parameters were the 44 00:02:24,680 --> 00:02:22,650 determined the physical laws and the 45 00:02:26,330 --> 00:02:24,690 properties of matter and energy we would 46 00:02:29,509 --> 00:02:26,340 still have this question of the initial 47 00:02:32,149 --> 00:02:29,519 condition why is it that the cosmic 48 00:02:35,149 --> 00:02:32,159 background radiation the oldest thing we 49 00:02:36,680 --> 00:02:35,159 can measure is not uniform as a matter 50 00:02:37,009 --> 00:02:36,690 of fact it seems to have some pattern to 51 00:02:42,740 --> 00:02:37,019 it 52 00:02:44,449 --> 00:02:42,750 get that way and how are these 53 00:02:50,990 --> 00:02:44,459 parameters derived in the first place 54 00:02:55,190 --> 00:02:51,000 well let me talk about oh that's 55 00:02:59,539 --> 00:02:55,200 interesting this is interesting I think 56 00:03:08,990 --> 00:02:59,549 you have my presentation from last year 57 00:03:10,550 --> 00:03:09,000 or two years ago that there's a slide 58 00:03:15,289 --> 00:03:10,560 that wasn't in there well it's alright 59 00:03:17,210 --> 00:03:15,299 we'll go on yeah there's there's 60 00:03:22,430 --> 00:03:17,220 something that got scrambled in the file 61 00:03:33,430 --> 00:03:22,440 it's alright yeah let's just do it this 62 00:03:43,820 --> 00:03:36,490 yeah I'm sorry but we've got the wrong 63 00:03:48,410 --> 00:03:43,830 presentation can we look at the stick 64 00:03:51,350 --> 00:03:48,420 again yeah could the universe be some 65 00:03:53,450 --> 00:03:51,360 other way the constants could be 66 00:03:55,550 --> 00:03:53,460 determined a lot of different ways here 67 00:03:58,580 --> 00:03:55,560 are four of them by some supernatural 68 00:03:59,900 --> 00:03:58,590 being perhaps they've determined random 69 00:04:01,610 --> 00:03:59,910 and there are a lot of different sub 70 00:04:03,590 --> 00:04:01,620 universes that have different values for 71 00:04:08,560 --> 00:04:03,600 these constants in which case we sort of 72 00:04:12,470 --> 00:04:10,880 this constants and those laws could have 73 00:04:14,660 --> 00:04:12,480 been in some way determined by our 74 00:04:17,810 --> 00:04:14,670 interactions with them our observations 75 00:04:22,460 --> 00:04:17,820 we created all by observing somewhat 76 00:04:24,350 --> 00:04:22,470 like similar previous talk or the the 77 00:04:26,200 --> 00:04:24,360 case that I'm more interested in perhaps 78 00:04:28,790 --> 00:04:26,210 that these constant really aren't 79 00:04:30,590 --> 00:04:28,800 independent and arbitrary but rather are 80 00:04:32,300 --> 00:04:30,600 mathematically derived and related in 81 00:04:33,860 --> 00:04:32,310 some interesting way so I'll give a 82 00:04:37,040 --> 00:04:33,870 couple of thoughts about that I'm 83 00:04:39,650 --> 00:04:37,050 reminded of Clarke's third law and by 84 00:04:40,909 --> 00:04:39,660 the way he added a fourth law in 99 for 85 00:04:44,690 --> 00:04:40,919 every expert there's an equal and 86 00:04:46,580 --> 00:04:44,700 opposite expert if if you've ever been 87 00:04:52,070 --> 00:04:46,590 involved in patent litigation as I have 88 00:04:53,810 --> 00:04:52,080 this is very apropos so I think it's any 89 00:04:55,700 --> 00:04:53,820 sufficiently advanced technology is 90 00:04:58,909 --> 00:04:55,710 indistinguishable from God we're really 91 00:05:00,830 --> 00:04:58,919 not imaginative enough to think of what 92 00:05:05,270 --> 00:05:00,840 advanced technology really advanced 93 00:05:07,550 --> 00:05:05,280 technology could be like and to say as 94 00:05:09,680 --> 00:05:07,560 some would say that they can't be here 95 00:05:11,930 --> 00:05:09,690 because it would violate the speed of 96 00:05:13,820 --> 00:05:11,940 light and too much energy has involved 97 00:05:16,670 --> 00:05:13,830 in all that kind of stuff is nonsense 98 00:05:18,440 --> 00:05:16,680 they have complete control of time and 99 00:05:22,159 --> 00:05:18,450 space and a lot more things that we 100 00:05:23,900 --> 00:05:22,169 haven't even thought of yet so if you 101 00:05:25,159 --> 00:05:23,910 think you have a guardian angel or some 102 00:05:28,370 --> 00:05:25,169 interaction with God 103 00:05:30,590 --> 00:05:28,380 I don't see any way to rule out that as 104 00:05:33,710 --> 00:05:30,600 being interaction with really advanced 105 00:05:35,510 --> 00:05:33,720 beings and advanced technology but 106 00:05:38,060 --> 00:05:35,520 beside the point back to physical 107 00:05:40,969 --> 00:05:38,070 constants here are some of them Bernie 108 00:05:42,680 --> 00:05:40,979 gave a nice summary of of a particular 109 00:05:45,140 --> 00:05:42,690 list Michio Kaku thinks maybe there are 110 00:05:47,180 --> 00:05:45,150 19 numbers numerate says John Baez 111 00:05:49,070 --> 00:05:47,190 counts 26 numbers 112 00:05:52,820 --> 00:05:49,080 Martin Reese's book just six numbers 113 00:05:54,830 --> 00:05:52,830 which is a very nice read derives the 114 00:05:57,320 --> 00:05:54,840 basis in an entirely different way using 115 00:05:59,600 --> 00:05:57,330 dimensionless numbers number of spatial 116 00:06:01,430 --> 00:05:59,610 dimensions and so on another interesting 117 00:06:03,920 --> 00:06:01,440 way of saying how many degrees of 118 00:06:06,110 --> 00:06:03,930 freedom are there maybe the real number 119 00:06:09,950 --> 00:06:06,120 is somewhere between six and twenty six 120 00:06:11,390 --> 00:06:09,960 I don't I don't know the usual 121 00:06:13,430 --> 00:06:11,400 assumptions that are made before we 122 00:06:15,830 --> 00:06:13,440 start thinking about these things I have 123 00:06:18,740 --> 00:06:15,840 some trouble with not because the 124 00:06:19,850 --> 00:06:18,750 principles are necessarily invalid for 125 00:06:21,370 --> 00:06:19,860 any reason but because of the way 126 00:06:23,990 --> 00:06:21,380 they're usually thought about 127 00:06:26,390 --> 00:06:24,000 materialism usually means there's stuff 128 00:06:28,760 --> 00:06:26,400 out there there are things in space 129 00:06:31,460 --> 00:06:28,770 whether those things are particles and 130 00:06:35,750 --> 00:06:31,470 fields or whether they are strings or 131 00:06:37,520 --> 00:06:35,760 some other abstract structure I'm much 132 00:06:39,430 --> 00:06:37,530 more tending these days toward thinking 133 00:06:42,410 --> 00:06:39,440 about differences and boundaries and 134 00:06:44,930 --> 00:06:42,420 transitions rather than the objects to 135 00:06:46,520 --> 00:06:44,940 me the the difference is to find the 136 00:06:48,890 --> 00:06:46,530 objects not the other way around 137 00:06:50,930 --> 00:06:48,900 and there's some precedents for this or 138 00:06:54,230 --> 00:06:50,940 maybe be able to go into that a little 139 00:06:55,370 --> 00:06:54,240 bit more later reductionism the idea 140 00:06:57,380 --> 00:06:55,380 that the whole is equal to sum of the 141 00:06:58,850 --> 00:06:57,390 parts people always say no now something 142 00:07:00,680 --> 00:06:58,860 emerges when you get all the parts 143 00:07:03,050 --> 00:07:00,690 together that wasn't there among the 144 00:07:04,909 --> 00:07:03,060 parts forgetting that if you know the 145 00:07:06,560 --> 00:07:04,919 parts and all their interactions you 146 00:07:08,270 --> 00:07:06,570 really do have the whole nevertheless 147 00:07:10,670 --> 00:07:08,280 three reductionism is not the only way 148 00:07:12,650 --> 00:07:10,680 to understand things and I would like to 149 00:07:14,480 --> 00:07:12,660 promote more constructivism that is 150 00:07:16,580 --> 00:07:14,490 starting from first principles or no 151 00:07:18,800 --> 00:07:16,590 principles and building upwards as well 152 00:07:20,290 --> 00:07:18,810 as reductionism taking things apart and 153 00:07:23,570 --> 00:07:20,300 trying to figure out how they work so 154 00:07:25,790 --> 00:07:23,580 the usual interpretation of that bothers 155 00:07:27,710 --> 00:07:25,800 me a bit randomness and the idea that 156 00:07:31,670 --> 00:07:27,720 there are truly causeless events at the 157 00:07:32,990 --> 00:07:31,680 core of physics I've totally bogus that 158 00:07:34,310 --> 00:07:33,000 one it seems to me that quantum 159 00:07:35,510 --> 00:07:34,320 measurement is not random at all and 160 00:07:38,240 --> 00:07:35,520 there's a big mistake that we've been 161 00:07:40,100 --> 00:07:38,250 making by making that assumption and it 162 00:07:42,800 --> 00:07:40,110 is an assumption in quantum mechanics it 163 00:07:45,110 --> 00:07:42,810 just happens to work very well so we 164 00:07:46,610 --> 00:07:45,120 believe it but I don't think anything is 165 00:07:48,650 --> 00:07:46,620 truly random in the sense of being 166 00:07:50,900 --> 00:07:48,660 causeless event even at the core of 167 00:07:52,850 --> 00:07:50,910 physics cause and effects might might be 168 00:07:54,680 --> 00:07:52,860 the most pernicious about of these in 169 00:07:56,620 --> 00:07:54,690 the sense that everyone thinks about 170 00:07:59,779 --> 00:07:56,630 cause and effect as a unidirectional 171 00:08:00,830 --> 00:07:59,789 thing and Liat this leads to the idea of 172 00:08:02,300 --> 00:08:00,840 time as a dimension 173 00:08:04,850 --> 00:08:02,310 and flowing in one direction and so on 174 00:08:06,110 --> 00:08:04,860 bad idea it seems to me that physics is 175 00:08:09,110 --> 00:08:06,120 telling us that everything is 176 00:08:11,360 --> 00:08:09,120 symmetrical in time and that all 177 00:08:15,530 --> 00:08:11,370 relationships of the causal nature are 178 00:08:17,629 --> 00:08:15,540 bi-directional and influence travels in 179 00:08:20,090 --> 00:08:17,639 both directions if we take these 180 00:08:21,350 --> 00:08:20,100 assumptions and formalize them in some 181 00:08:23,360 --> 00:08:21,360 way we usually get what's called a 182 00:08:26,840 --> 00:08:23,370 system of axioms you could say the 183 00:08:28,939 --> 00:08:26,850 standard model of physics is a kind of 184 00:08:31,520 --> 00:08:28,949 set of formal assumptions quantum theory 185 00:08:33,800 --> 00:08:31,530 in mathematics set theory and predicate 186 00:08:35,300 --> 00:08:33,810 calculus and so forth so we tend to 187 00:08:38,930 --> 00:08:35,310 formalize this and one might say that 188 00:08:41,329 --> 00:08:38,940 the more complex well let's say the less 189 00:08:43,279 --> 00:08:41,339 complex the set of axioms and beliefs 190 00:08:44,810 --> 00:08:43,289 are the more likely it is that we're 191 00:08:46,460 --> 00:08:44,820 close to the bottom that we're close to 192 00:08:48,650 --> 00:08:46,470 really understanding something or closer 193 00:08:51,560 --> 00:08:48,660 to bedrock and the more complex things 194 00:08:54,380 --> 00:08:51,570 are the rivers so here's an example from 195 00:08:57,110 --> 00:08:54,390 mathematics the Ximena Franco and the 196 00:09:00,019 --> 00:08:57,120 axiom of choice set theory eight axioms 197 00:09:03,200 --> 00:09:00,029 two of which at least are infinite axiom 198 00:09:05,570 --> 00:09:03,210 schema now I ask you does this look like 199 00:09:07,910 --> 00:09:05,580 we really understand the fundations of 200 00:09:09,260 --> 00:09:07,920 set theory or maybe sets are not such a 201 00:09:13,519 --> 00:09:09,270 good idea in the first place which is 202 00:09:15,949 --> 00:09:13,529 where where it's where I go Henry won't 203 00:09:17,570 --> 00:09:15,959 want car a said later generations will 204 00:09:19,699 --> 00:09:17,580 regard set theory as a disease from 205 00:09:21,380 --> 00:09:19,709 which one has recovered what we haven't 206 00:09:23,060 --> 00:09:21,390 recovered yet this is really one of the 207 00:09:27,400 --> 00:09:23,070 most fundamental things that are taught 208 00:09:30,230 --> 00:09:27,410 in mathematics congruent versus deep 209 00:09:31,790 --> 00:09:30,240 models a congruent model is really a 210 00:09:35,570 --> 00:09:31,800 kind of a theory it's an abstract 211 00:09:38,570 --> 00:09:35,580 something another that we sometimes try 212 00:09:40,730 --> 00:09:38,580 to tune to be the same shape as whatever 213 00:09:43,310 --> 00:09:40,740 it is we're modeling and so the more 214 00:09:45,740 --> 00:09:43,320 tuning is necessary that added 215 00:09:48,470 --> 00:09:45,750 assumptions and FUD factors show up and 216 00:09:50,449 --> 00:09:48,480 and this is not necessarily explaining 217 00:09:52,730 --> 00:09:50,459 things but merely modeling them so we 218 00:09:55,820 --> 00:09:52,740 can do stuff and try things to the model 219 00:09:58,820 --> 00:09:55,830 that will then be reflected in the in 220 00:10:00,650 --> 00:09:58,830 the real world somehow whereas a deeper 221 00:10:02,210 --> 00:10:00,660 model has something that's simpler and 222 00:10:04,820 --> 00:10:02,220 it was really more fundamental and more 223 00:10:07,040 --> 00:10:04,830 like how it really is how the the 224 00:10:08,960 --> 00:10:07,050 phenomenon or whatever it is is actually 225 00:10:10,190 --> 00:10:08,970 generated and tells us something more 226 00:10:13,100 --> 00:10:10,200 about its place in the world 227 00:10:14,180 --> 00:10:13,110 here are some discrete physical models 228 00:10:15,800 --> 00:10:14,190 that I think are 229 00:10:17,660 --> 00:10:15,810 really becoming more and more 230 00:10:19,880 --> 00:10:17,670 interesting 231 00:10:21,740 --> 00:10:19,890 string theory hasn't quite paid off but 232 00:10:23,870 --> 00:10:21,750 still there's something very importantly 233 00:10:26,090 --> 00:10:23,880 correct about it even if it's not the 234 00:10:30,140 --> 00:10:26,100 whole story even in the standard model 235 00:10:32,000 --> 00:10:30,150 group symmetries as an abstract idea can 236 00:10:34,880 --> 00:10:32,010 model three of the four forces at least 237 00:10:37,490 --> 00:10:34,890 in some respects some of you may have 238 00:10:39,730 --> 00:10:37,500 seen causal dynamical triangulations a 239 00:10:42,440 --> 00:10:39,740 terrible name if I've ever heard one 240 00:10:45,440 --> 00:10:42,450 it's the cover story in scientific 241 00:10:48,680 --> 00:10:45,450 Scientific American this month by Renata 242 00:10:51,730 --> 00:10:48,690 Lowe and some others they claim to have 243 00:10:54,350 --> 00:10:51,740 derived from first principles the 244 00:10:58,520 --> 00:10:54,360 dimensionality of our space three plus 245 00:11:00,770 --> 00:10:58,530 one or four dimensions questionable 246 00:11:02,450 --> 00:11:00,780 again but again I bring these forward 247 00:11:05,060 --> 00:11:02,460 just to say here's an interesting 248 00:11:07,520 --> 00:11:05,070 direction and this kind of thing is what 249 00:11:11,950 --> 00:11:07,530 we ought to be looking at Garrett Lisi 250 00:11:15,830 --> 00:11:11,960 in the ee8 Lee algebra showed up as a 251 00:11:18,560 --> 00:11:15,840 possible candidate for a theory of 252 00:11:20,330 --> 00:11:18,570 everything last year and Steven 253 00:11:21,860 --> 00:11:20,340 Wolfram's new kind of science which is 254 00:11:24,140 --> 00:11:21,870 tries to explain everything in terms of 255 00:11:27,290 --> 00:11:24,150 cellular automata again a very abstract 256 00:11:31,310 --> 00:11:27,300 notion at the base of it all here's the 257 00:11:34,160 --> 00:11:31,320 e8 Theory 248 dimensional lis algebra if 258 00:11:37,730 --> 00:11:34,170 you decompose this into various parts 259 00:11:39,830 --> 00:11:37,740 sub algebra Lisi would say that you get 260 00:11:43,610 --> 00:11:39,840 a very good correspondence to gravity 261 00:11:44,900 --> 00:11:43,620 the forces particles and so on some 262 00:11:46,460 --> 00:11:44,910 people who know a lot more group theory 263 00:11:48,500 --> 00:11:46,470 in mathematical physics and I do have 264 00:11:51,610 --> 00:11:48,510 said this really doesn't map well and 265 00:11:53,870 --> 00:11:51,620 it's not the answer but it's a good try 266 00:11:56,030 --> 00:11:53,880 so let's go to the other end of the 267 00:11:57,829 --> 00:11:56,040 spectrum the the simplest possible thing 268 00:12:00,079 --> 00:11:57,839 what's the simplest possible thing we 269 00:12:02,150 --> 00:12:00,089 could imagine in the abstract where 270 00:12:05,300 --> 00:12:02,160 what's the starting place for everything 271 00:12:09,079 --> 00:12:05,310 that we must all share and the answer I 272 00:12:11,750 --> 00:12:09,089 think is nothing the void and I don't 273 00:12:13,870 --> 00:12:11,760 mean the vacuum the empty set any of 274 00:12:16,160 --> 00:12:13,880 that kind of stuff I mean nothing 275 00:12:18,230 --> 00:12:16,170 suppose we take nothing we take the 276 00:12:21,350 --> 00:12:18,240 smallest step we can away from nothing 277 00:12:24,500 --> 00:12:21,360 what would that be something it doesn't 278 00:12:26,060 --> 00:12:24,510 have a name it's not nothing okay that's 279 00:12:27,170 --> 00:12:26,070 the first distinction this is from G 280 00:12:30,500 --> 00:12:27,180 Spencer Browns 281 00:12:32,750 --> 00:12:30,510 laws of form two distinctions can be 282 00:12:34,280 --> 00:12:32,760 made in two different ways cardinality 283 00:12:36,650 --> 00:12:34,290 and bosons flow from the first 284 00:12:38,180 --> 00:12:36,660 ordinality and Fermo fermions from the 285 00:12:40,660 --> 00:12:38,190 second so I think we're really onto 286 00:12:43,690 --> 00:12:40,670 something here 287 00:12:46,310 --> 00:12:43,700 some friends in Great Britain took this 288 00:12:48,680 --> 00:12:46,320 idea which they developed separately by 289 00:12:52,640 --> 00:12:48,690 the way not from Spencer Brown and tried 290 00:12:54,200 --> 00:12:52,650 to make a hierarchy of groups by 291 00:12:55,610 --> 00:12:54,210 instantiating the number of different 292 00:12:59,990 --> 00:12:55,620 things you could distinguish at each 293 00:13:07,520 --> 00:13:00,000 level 2 3 7 and 127 the total number of 294 00:13:10,850 --> 00:13:07,530 symbols then is 2 3 10 137 and really 295 00:13:12,740 --> 00:13:10,860 big now this caught their attention 296 00:13:14,270 --> 00:13:12,750 because 137 is very close to the 297 00:13:17,630 --> 00:13:14,280 reciprocal of the fine-structure 298 00:13:20,570 --> 00:13:17,640 constant and 3 10 137 and really big are 299 00:13:22,910 --> 00:13:20,580 something like the ratios of the 300 00:13:24,320 --> 00:13:22,920 strengths of the four forces so this 301 00:13:25,790 --> 00:13:24,330 group has been looking to this quite a 302 00:13:27,440 --> 00:13:25,800 bit further than I can tell you about he 303 00:13:28,760 --> 00:13:27,450 ran out and again I don't know whether 304 00:13:31,220 --> 00:13:28,770 this is going anywhere or not but it 305 00:13:33,170 --> 00:13:31,230 certainly is interesting 306 00:13:35,150 --> 00:13:33,180 stepping to relativity everybody knows 307 00:13:38,210 --> 00:13:35,160 that Lorentz transformation of the 308 00:13:40,280 --> 00:13:38,220 Lorentz factor is very critical and 309 00:13:41,840 --> 00:13:40,290 connected to lots of things in physics 310 00:13:45,380 --> 00:13:41,850 as you can see from this diagram in 311 00:13:47,510 --> 00:13:45,390 Lucas and Hodgson's book and they go in 312 00:13:51,110 --> 00:13:47,520 the in the into this book and derive 313 00:13:52,490 --> 00:13:51,120 Lorentz factors from a wide variety of 314 00:13:54,670 --> 00:13:52,500 different viewpoints there's something 315 00:13:57,410 --> 00:13:54,680 very important about the Lorentz factor 316 00:13:59,870 --> 00:13:57,420 but I'd like to see it described and 317 00:14:02,840 --> 00:13:59,880 derived discretely so here I have an 318 00:14:07,220 --> 00:14:02,850 object and a very very simple notion of 319 00:14:09,230 --> 00:14:07,230 motion that is to say if it moves 1 if 320 00:14:12,320 --> 00:14:09,240 it moves to the right I count +1 if it 321 00:14:15,650 --> 00:14:12,330 moves to the left I count minus 1 that's 322 00:14:19,910 --> 00:14:15,660 the simplest possible definition of 323 00:14:22,310 --> 00:14:19,920 motion I can think of there's no rulers 324 00:14:24,140 --> 00:14:22,320 here there's no clocks when it moves I 325 00:14:26,660 --> 00:14:24,150 kick my clock if it moves in either 326 00:14:30,230 --> 00:14:26,670 direction I take my clock and I keep 327 00:14:32,960 --> 00:14:30,240 track of by counting these dimensionless 328 00:14:34,640 --> 00:14:32,970 things how far it's moved here's the 329 00:14:36,260 --> 00:14:34,650 number that it moves plus minus the 330 00:14:39,829 --> 00:14:36,270 number it moved - that's kind of a 331 00:14:41,480 --> 00:14:39,839 distance the number it moved plus plus 332 00:14:43,850 --> 00:14:41,490 the number of times it moved in the 333 00:14:45,800 --> 00:14:43,860 other direction and that's sort of a 334 00:14:47,540 --> 00:14:45,810 time but we have no independent clocks 335 00:14:50,119 --> 00:14:47,550 whatsoever so we turn that into a 336 00:14:54,710 --> 00:14:50,129 probability using a the sum of these 337 00:14:56,720 --> 00:14:54,720 accounts and for simplicity in the 338 00:14:59,230 --> 00:14:56,730 algebra and we can note right away 339 00:15:02,449 --> 00:14:59,240 there's a maximum velocity which is one 340 00:15:04,759 --> 00:15:02,459 one step per tick if all the movement is 341 00:15:07,970 --> 00:15:04,769 in one direction that's plus C if it's 342 00:15:10,939 --> 00:15:07,980 all it to the left it's minus C now 343 00:15:13,040 --> 00:15:10,949 let's take two such things and try to 344 00:15:15,949 --> 00:15:13,050 add the two velocities together this is 345 00:15:18,769 --> 00:15:15,959 like firing a gun from the front of a 346 00:15:21,199 --> 00:15:18,779 rocket ship let's say so we're going to 347 00:15:22,850 --> 00:15:21,209 watch just the second object which is 348 00:15:24,590 --> 00:15:22,860 moving in a similar way but relative to 349 00:15:27,499 --> 00:15:24,600 the first object so that these things 350 00:15:29,379 --> 00:15:27,509 add up so I add them up here's the first 351 00:15:32,119 --> 00:15:29,389 velocity here's the second velocity and 352 00:15:34,699 --> 00:15:32,129 look look at these two terms right here 353 00:15:36,379 --> 00:15:34,709 when number one goes in to the left and 354 00:15:37,730 --> 00:15:36,389 number two goes to the right we don't 355 00:15:40,879 --> 00:15:37,740 see anything because they cancelled each 356 00:15:42,470 --> 00:15:40,889 other out when number two goes to the 357 00:15:44,749 --> 00:15:42,480 right and number one goes to the left 358 00:15:48,079 --> 00:15:44,759 there's we're cancelling and we don't 359 00:15:51,230 --> 00:15:48,089 take our clock either no no time passes 360 00:15:53,929 --> 00:15:51,240 so we do the mathematics on that just a 361 00:15:58,069 --> 00:15:53,939 little simple algebra gives you this 362 00:16:02,840 --> 00:15:58,079 answer and sure enough one plus V 1 V 1 363 00:16:04,730 --> 00:16:02,850 V 2 is in the denominator so all steps 364 00:16:06,079 --> 00:16:04,740 are still size 1 C is equal to 1 and 365 00:16:08,119 --> 00:16:06,089 when you add the velocities together you 366 00:16:10,369 --> 00:16:08,129 get exactly the factor that special 367 00:16:12,350 --> 00:16:10,379 relativity would tell you can we derive 368 00:16:14,480 --> 00:16:12,360 all of special relativity from this idea 369 00:16:18,049 --> 00:16:14,490 I don't know I haven't done it yet stay 370 00:16:20,090 --> 00:16:18,059 tuned but the idea is that we started it 371 00:16:21,949 --> 00:16:20,100 with something extremely simple before 372 00:16:25,869 --> 00:16:21,959 the usual notions of space and time and 373 00:16:29,860 --> 00:16:25,879 we got to something very quickly that 374 00:16:33,910 --> 00:16:29,870 gives us special relativity relativistic 375 00:16:35,860 --> 00:16:33,920 additive velocities summary summarizing 376 00:16:38,569 --> 00:16:35,870 the constants 377 00:16:40,100 --> 00:16:38,579 seem arbitrary but they might be purely 378 00:16:43,040 --> 00:16:40,110 mathematical and there might be a lot to 379 00:16:45,860 --> 00:16:43,050 be learned about them from studying them 380 00:16:48,740 --> 00:16:45,870 as abstract mathematical objects and 381 00:16:50,809 --> 00:16:48,750 deductions I'm advocating construction 382 00:16:53,449 --> 00:16:50,819 rather than or in addition to the usual 383 00:16:56,230 --> 00:16:53,459 reductionist approach combinatorics and 384 00:16:58,639 --> 00:16:56,240 fourth seem to be very important 385 00:17:00,650 --> 00:16:58,649 suggesting the idea of dick distinction 386 00:17:04,189 --> 00:17:00,660 or difference as prior to object and 387 00:17:06,649 --> 00:17:04,199 maybe the ultimate origins and the idea 388 00:17:08,720 --> 00:17:06,659 of discrete motion from pre space and 389 00:17:11,269 --> 00:17:08,730 time and relativistic velocity addition 390 00:17:13,549 --> 00:17:11,279 may ask you a question how many I've 391 00:17:17,529 --> 00:17:13,559 ever heard of this discrete derivation 392 00:17:22,100 --> 00:17:17,539 of velocity addition before nobody okay 393 00:17:24,860 --> 00:17:22,110 thanks it was due to urban Stein and Tom 394 00:17:28,010 --> 00:17:24,870 Meador as I may have said and we're 395 00:17:30,139 --> 00:17:28,020 exploring that a lot further we're 396 00:17:31,399 --> 00:17:30,149 always seeking funding to continue this 397 00:17:46,940 --> 00:17:31,409 research so if anybody's interested 398 00:17:49,909 --> 00:17:46,950 please let me know thank you minutes for 399 00:17:57,260 --> 00:17:49,919 questions and it looks like Dave Leiter 400 00:18:00,760 --> 00:17:57,270 got his hand up first Richard this is 401 00:18:03,549 --> 00:18:00,770 more a an observation than a question 402 00:18:06,860 --> 00:18:03,559 one of the first books that I read 403 00:18:08,539 --> 00:18:06,870 entering into this whole realm and I 404 00:18:11,690 --> 00:18:08,549 think I remember it correctly he was 405 00:18:15,620 --> 00:18:11,700 called cosmic consciousness by Maurice 406 00:18:19,760 --> 00:18:15,630 Burke and what he predicted was that 407 00:18:23,330 --> 00:18:19,770 humanity was gradually becoming more and 408 00:18:27,019 --> 00:18:23,340 more and more intelligent and I'm almost 409 00:18:29,960 --> 00:18:27,029 seeing that happen between the speakers 410 00:18:32,299 --> 00:18:29,970 and and the audience we're kind of 411 00:18:37,669 --> 00:18:32,309 gathered for that that purpose and 412 00:18:51,850 --> 00:18:37,679 because of that growing ability it's a 413 00:18:55,510 --> 00:18:54,130 okay I sort of thought the speaker might 414 00:19:03,040 --> 00:18:55,520 have something to say in response any 415 00:19:05,440 --> 00:19:03,050 other questions I did I'd like to know 416 00:19:08,500 --> 00:19:05,450 what the implications are of the so 417 00:19:11,020 --> 00:19:08,510 called cosmic axis of evil on your model 418 00:19:14,920 --> 00:19:11,030 this idea that the universe has a kites 419 00:19:15,970 --> 00:19:14,930 not distributed evenly you mentioned it 420 00:19:17,050 --> 00:19:15,980 briefly at the beginning of your talk 421 00:19:20,170 --> 00:19:17,060 the background radiation 422 00:19:23,920 --> 00:19:20,180 have some kind of a pattern in it and 423 00:19:26,740 --> 00:19:23,930 there's an area where there's where it's 424 00:19:30,430 --> 00:19:26,750 kind of sparse I have no idea it seems 425 00:19:32,800 --> 00:19:30,440 to me no more interesting than why are 426 00:19:36,820 --> 00:19:32,810 why is that galaxy over here rather than 427 00:19:39,280 --> 00:19:36,830 over there but there's got to be a ton 428 00:19:41,620 --> 00:19:39,290 of information provided some from 429 00:19:43,090 --> 00:19:41,630 someplace so where did that come from is 430 00:19:47,500 --> 00:19:43,100 a very good question but on the other 431 00:19:50,950 --> 00:19:47,510 hand if I gave you a huge number let's 432 00:19:53,110 --> 00:19:50,960 see a huge integer that was oh I don't 433 00:19:56,950 --> 00:19:53,120 know ten to the hundredth digits long or 434 00:19:58,900 --> 00:19:56,960 something like that could I ask you to 435 00:20:00,910 --> 00:19:58,910 tell me how much information is in that 436 00:20:03,370 --> 00:20:00,920 integer in other words how much would it 437 00:20:05,170 --> 00:20:03,380 take in information terms to distinguish 438 00:20:07,870 --> 00:20:05,180 that integer from all other integers of 439 00:20:09,430 --> 00:20:07,880 the same size well it might take a while 440 00:20:12,010 --> 00:20:09,440 to figure out whether or not that it's a 441 00:20:15,520 --> 00:20:12,020 highly composite number I gave you or a 442 00:20:17,260 --> 00:20:15,530 prime or or what and the amount of 443 00:20:19,450 --> 00:20:17,270 information contained in a very complex 444 00:20:22,630 --> 00:20:19,460 thing is not always clear that's my 445 00:20:24,760 --> 00:20:22,640 point so if you think in terms of really 446 00:20:27,130 --> 00:20:24,770 really really huge numbers it might be 447 00:20:29,260 --> 00:20:27,140 that there's less complexity required to 448 00:20:31,750 --> 00:20:29,270 specify this universe then we would 449 00:20:33,070 --> 00:20:31,760 first think I don't know maybe there's a 450 00:20:35,560 --> 00:20:33,080 lot more patterns that we have not 451 00:20:39,190 --> 00:20:35,570 discerned yet both mathematically and 452 00:20:44,230 --> 00:20:39,200 physically I'm going to get in trouble 453 00:20:45,850 --> 00:20:44,240 for glossing the cosmologists but the 454 00:20:48,250 --> 00:20:45,860 question about the fluctuation in the 455 00:20:50,380 --> 00:20:48,260 background radiation is the current 456 00:20:52,150 --> 00:20:50,390 explanation for why that galaxies over 457 00:20:54,210 --> 00:20:52,160 there yes yes right and this one's over 458 00:20:57,970 --> 00:20:54,220 here and there was a literal conversion 459 00:20:59,100 --> 00:20:57,980 experience in 1990 when the Cobain data 460 00:21:00,990 --> 00:20:59,110 was presented at that 461 00:21:11,190 --> 00:21:01,000 in Florida and they all of a sudden 462 00:21:20,230 --> 00:21:16,090 as you stated randomness is an 463 00:21:24,670 --> 00:21:20,240 assumption that most scientists just 464 00:21:27,100 --> 00:21:24,680 take for granted and get you and a few 465 00:21:30,100 --> 00:21:27,110 others including myself seriously 466 00:21:32,500 --> 00:21:30,110 question that assumption how is it that 467 00:21:34,450 --> 00:21:32,510 you have come to that conclusion if you 468 00:21:36,910 --> 00:21:34,460 can tell us briefly and what 469 00:21:39,100 --> 00:21:36,920 significance does that have for the 470 00:21:41,230 --> 00:21:39,110 evolution of the framework that you're 471 00:21:44,490 --> 00:21:41,240 taking how did I get to the dark side 472 00:21:47,650 --> 00:21:44,500 [Laughter] 473 00:21:51,010 --> 00:21:47,660 well first of all quantum randomness has 474 00:21:55,390 --> 00:21:51,020 been the most controversial kind of 475 00:21:56,770 --> 00:21:55,400 thing contained in in the quantum 476 00:21:58,240 --> 00:21:56,780 measurement problem since the beginning 477 00:21:58,660 --> 00:21:58,250 even the founders didn't like it very 478 00:22:02,140 --> 00:21:58,670 much 479 00:22:05,530 --> 00:22:02,150 and yet it works so very well but I was 480 00:22:10,120 --> 00:22:05,540 I guess first started thinking about 481 00:22:11,620 --> 00:22:10,130 this by some physicists the one that 482 00:22:13,720 --> 00:22:11,630 comes to mind it might not have been the 483 00:22:15,970 --> 00:22:13,730 first that I read but anyway surf and 484 00:22:20,190 --> 00:22:15,980 Adame nicholas urfe and chris Adame at 485 00:22:24,340 --> 00:22:20,200 at Caltech wrote a paper about this 486 00:22:26,380 --> 00:22:24,350 that's been widely ignored and there are 487 00:22:30,100 --> 00:22:26,390 some other justifications for it in 488 00:22:32,170 --> 00:22:30,110 purely quantum theory terms so that got 489 00:22:32,620 --> 00:22:32,180 me started then I started to think about 490 00:22:36,160 --> 00:22:32,630 it 491 00:22:38,320 --> 00:22:36,170 more and look at the evidence from sy4 492 00:22:40,300 --> 00:22:38,330 backwards causation and for backwards 493 00:22:42,730 --> 00:22:40,310 causation this suddenly solves the 494 00:22:44,620 --> 00:22:42,740 problem so it clicked together for me 495 00:22:46,360 --> 00:22:44,630 and the more I look the more I see 496 00:22:49,450 --> 00:22:46,370 evidence that things are symmetrical in 497 00:22:51,430 --> 00:22:49,460 time preparation measurement exactly 498 00:22:55,750 --> 00:22:51,440 symmetrical if you think about that for 499 00:22:58,480 --> 00:22:55,760 a while and I think you have a lot of 500 00:23:00,700 --> 00:22:58,490 things clear up ok unfortunately we're 501 00:23:02,840 --> 00:23:00,710 out of time for questions or discussion