1 00:00:08,790 --> 00:00:06,230 [Music] 2 00:00:12,709 --> 00:00:08,800 so let's talk about the hypothesis here 3 00:00:17,910 --> 00:00:14,230 what 4 00:00:19,670 --> 00:00:17,920 dr mosbridge found is that there's a 5 00:00:21,750 --> 00:00:19,680 correlation 6 00:00:23,109 --> 00:00:21,760 or at least there can be it's been found 7 00:00:25,029 --> 00:00:23,119 in some experiments there's a 8 00:00:29,189 --> 00:00:25,039 correlation between 9 00:00:30,950 --> 00:00:29,199 predecision and post-decision data 10 00:00:33,270 --> 00:00:30,960 in an experiment where there's a 11 00:00:35,670 --> 00:00:33,280 decision about how long that experiment 12 00:00:37,430 --> 00:00:35,680 will run so in other words the as you 13 00:00:39,190 --> 00:00:37,440 can see the little x's down here are 14 00:00:40,869 --> 00:00:39,200 data 15 00:00:42,229 --> 00:00:40,879 i can point with my mouse little x's 16 00:00:43,190 --> 00:00:42,239 down here data 17 00:00:45,430 --> 00:00:43,200 and 18 00:00:48,310 --> 00:00:45,440 each time the experiment runs a trial 19 00:00:49,510 --> 00:00:48,320 and it ran about uh 34 000 of these 20 00:00:50,630 --> 00:00:49,520 trials 21 00:00:52,869 --> 00:00:50,640 um 22 00:00:55,590 --> 00:00:52,879 each time it makes a decision where this 23 00:00:57,189 --> 00:00:55,600 vertical line is as to how long the 24 00:00:58,470 --> 00:00:57,199 remaining duration of the experiment 25 00:01:01,430 --> 00:00:58,480 will be 26 00:01:03,029 --> 00:01:01,440 and that remaining duration seems to 27 00:01:04,789 --> 00:01:03,039 affect somehow 28 00:01:07,109 --> 00:01:04,799 the data that 29 00:01:08,390 --> 00:01:07,119 either came before that decision 30 00:01:12,789 --> 00:01:08,400 or 31 00:01:16,630 --> 00:01:12,799 the decision with the data after that 32 00:01:21,590 --> 00:01:16,640 decision but still dependent on how long 33 00:01:25,749 --> 00:01:24,070 in order to make a comparison we have to 34 00:01:28,310 --> 00:01:25,759 have some data after the decision to 35 00:01:31,429 --> 00:01:28,320 compare to the data before the decision 36 00:01:32,469 --> 00:01:31,439 but the remaining duration after that 37 00:01:33,429 --> 00:01:32,479 matters 38 00:01:35,510 --> 00:01:33,439 for 39 00:01:37,109 --> 00:01:35,520 that correlation i'll get into that more 40 00:01:38,550 --> 00:01:37,119 detail and you'll see this slide again 41 00:01:42,069 --> 00:01:38,560 i'm going to bring it up two more times 42 00:01:44,149 --> 00:01:42,079 in this talk in different variations 43 00:01:46,469 --> 00:01:44,159 so let's talk about what julia 44 00:01:47,990 --> 00:01:46,479 mossbridge found 45 00:01:50,069 --> 00:01:48,000 and what her 46 00:01:52,469 --> 00:01:50,079 protocol was and 47 00:01:55,510 --> 00:01:52,479 what she means by what we mean by 48 00:01:56,469 --> 00:01:55,520 causally ambiguous duration sorting 49 00:01:58,950 --> 00:01:56,479 so 50 00:02:01,190 --> 00:01:58,960 um the experiments that she reported on 51 00:02:03,109 --> 00:02:01,200 in 2019 and 2021 52 00:02:05,910 --> 00:02:03,119 all involve these elements on the right 53 00:02:07,429 --> 00:02:05,920 and here's a plot from one of her talks 54 00:02:11,990 --> 00:02:07,439 so 55 00:02:13,830 --> 00:02:12,000 and a detector and photon counting and 56 00:02:16,070 --> 00:02:13,840 the light source and detector are both 57 00:02:19,110 --> 00:02:16,080 turned on and off 58 00:02:20,630 --> 00:02:19,120 as for each trial so when a trial begins 59 00:02:23,030 --> 00:02:20,640 the light source and detector are turned 60 00:02:25,190 --> 00:02:23,040 on and when that trial completes the 61 00:02:27,350 --> 00:02:25,200 light source and detector are turned off 62 00:02:28,949 --> 00:02:27,360 they stay off for three minutes and then 63 00:02:30,309 --> 00:02:28,959 they turn on again for the next trial 64 00:02:33,430 --> 00:02:30,319 which might have a different duration or 65 00:02:35,430 --> 00:02:33,440 the same duration as the previous trial 66 00:02:36,949 --> 00:02:35,440 and then the average photon counts as i 67 00:02:38,790 --> 00:02:36,959 mentioned 68 00:02:39,670 --> 00:02:38,800 show a dependence 69 00:02:41,270 --> 00:02:39,680 on 70 00:02:43,190 --> 00:02:41,280 the future 71 00:02:45,110 --> 00:02:43,200 random 72 00:02:47,350 --> 00:02:45,120 duration 73 00:02:49,670 --> 00:02:47,360 and the time scales involved are seconds 74 00:02:51,430 --> 00:02:49,680 to minutes 75 00:02:53,430 --> 00:02:51,440 and what you can see in this plot here 76 00:02:55,509 --> 00:02:53,440 the reason i'm showing this 77 00:02:58,229 --> 00:02:55,519 is that you can see very clearly here 78 00:03:01,350 --> 00:02:58,239 the yellow curve which is a 79 00:03:04,149 --> 00:03:01,360 average of long duration runs 80 00:03:05,670 --> 00:03:04,159 is distinctly different than the green 81 00:03:07,509 --> 00:03:05,680 blue and you can see a little purple 82 00:03:08,470 --> 00:03:07,519 curve here which are shorter duration 83 00:03:10,710 --> 00:03:08,480 runs 84 00:03:12,630 --> 00:03:10,720 and that difference between those longer 85 00:03:14,070 --> 00:03:12,640 and shorter duration runs 86 00:03:15,030 --> 00:03:14,080 doesn't just appear at the end of the 87 00:03:17,270 --> 00:03:15,040 run 88 00:03:22,149 --> 00:03:17,280 you see a difference in the earlier part 89 00:03:23,430 --> 00:03:22,159 of that of of those runs when averaged 90 00:03:24,420 --> 00:03:23,440 even though 91 00:03:26,149 --> 00:03:24,430 that 92 00:03:28,309 --> 00:03:26,159 [Music] 93 00:03:29,430 --> 00:03:28,319 that decision hasn't really been 94 00:03:31,509 --> 00:03:29,440 implemented 95 00:03:33,430 --> 00:03:31,519 in any difference here and actually even 96 00:03:35,110 --> 00:03:33,440 before the decision is made here the red 97 00:03:37,110 --> 00:03:35,120 line is that decision about how long the 98 00:03:39,830 --> 00:03:37,120 duration will be even before that 99 00:03:42,789 --> 00:03:39,840 decision is made dr mossbridge found a 100 00:03:45,270 --> 00:03:42,799 difference between the longest duration 101 00:03:48,710 --> 00:03:45,280 trials and the shorter ones 102 00:03:52,710 --> 00:03:50,070 so 103 00:03:54,630 --> 00:03:52,720 the current experiment that i've run for 104 00:03:56,550 --> 00:03:54,640 it's actually just completed a two day 105 00:03:58,070 --> 00:03:56,560 two days ago it completed a year running 106 00:04:01,509 --> 00:03:58,080 but the data i'm reporting is just 107 00:04:03,830 --> 00:04:01,519 through february 21st 108 00:04:05,350 --> 00:04:03,840 there were key differences and upgrades 109 00:04:07,509 --> 00:04:05,360 in the hardware 110 00:04:09,670 --> 00:04:07,519 the photon detector 111 00:04:12,710 --> 00:04:09,680 instead of a photomultiplier tube 112 00:04:15,509 --> 00:04:12,720 is a single photon counting module in 113 00:04:17,509 --> 00:04:15,519 other words a reverse bias diode 114 00:04:18,870 --> 00:04:17,519 the pulse counting is done by a field 115 00:04:21,909 --> 00:04:18,880 programmable gate array which is 116 00:04:25,510 --> 00:04:21,919 independent of the computer 117 00:04:27,510 --> 00:04:25,520 there's random number generation um 118 00:04:29,270 --> 00:04:27,520 julia and i are quite excited about that 119 00:04:31,270 --> 00:04:29,280 is a big upgrade and i'll tell you more 120 00:04:32,150 --> 00:04:31,280 about that later 121 00:04:35,430 --> 00:04:32,160 um 122 00:04:36,310 --> 00:04:35,440 i used labview instead of matlab 123 00:04:40,390 --> 00:04:36,320 and 124 00:04:42,790 --> 00:04:40,400 independently written 125 00:04:45,670 --> 00:04:42,800 she had told me her protocol but 126 00:04:48,390 --> 00:04:45,680 i hadn't worked with any of her code 127 00:04:50,790 --> 00:04:48,400 and to ramp up and down the voltage for 128 00:04:53,430 --> 00:04:50,800 the inverse bias of that diode in the 129 00:04:54,150 --> 00:04:53,440 photodetector i used an rc circuit for 130 00:04:57,110 --> 00:04:54,160 that 131 00:05:00,550 --> 00:04:57,120 um there was an rc circuit already in 132 00:05:03,749 --> 00:05:00,560 the in the box that i had for operating 133 00:05:05,749 --> 00:05:03,759 that photodiode and what i did is jumper 134 00:05:07,110 --> 00:05:05,759 in some circuitry so the computer could 135 00:05:08,390 --> 00:05:07,120 turn it on and off instead of a manual 136 00:05:11,110 --> 00:05:08,400 switch 137 00:05:12,950 --> 00:05:11,120 and then um the operate the 138 00:05:15,029 --> 00:05:12,960 experiment was operated continuously 24 139 00:05:17,350 --> 00:05:15,039 7 for over six months 140 00:05:21,590 --> 00:05:17,360 whereas dr moss bridges experiments we 141 00:05:25,830 --> 00:05:23,110 okay so let's look at the optics as i 142 00:05:27,590 --> 00:05:25,840 mentioned we we're photon counting 143 00:05:29,270 --> 00:05:27,600 experiment our photons begin here from 144 00:05:31,749 --> 00:05:29,280 this light emitting diode 145 00:05:33,909 --> 00:05:31,759 this is turned on and off by the 146 00:05:36,230 --> 00:05:33,919 computer software in labview 147 00:05:38,790 --> 00:05:36,240 and then it hits a diffuser so that you 148 00:05:40,070 --> 00:05:38,800 get an even so like even if the led were 149 00:05:41,270 --> 00:05:40,080 to move a little bit it wouldn't affect 150 00:05:42,790 --> 00:05:41,280 the counting that much because it's 151 00:05:44,150 --> 00:05:42,800 being diffused here 152 00:05:45,510 --> 00:05:44,160 then it goes through some miscellaneous 153 00:05:46,950 --> 00:05:45,520 objects that just happen to be on the 154 00:05:49,510 --> 00:05:46,960 table and i didn't 155 00:05:50,950 --> 00:05:49,520 see need to remove them 156 00:05:52,790 --> 00:05:50,960 and then this is important it goes 157 00:05:54,390 --> 00:05:52,800 through this detuned bandpass filter 158 00:05:56,150 --> 00:05:54,400 what i mean by detuned is the bandpass 159 00:05:59,590 --> 00:05:56,160 filter is designed for infrared photons 160 00:06:01,510 --> 00:05:59,600 at 880 nanometers but this led is around 161 00:06:03,270 --> 00:06:01,520 650 so 162 00:06:05,110 --> 00:06:03,280 uh most of the light will be blocked by 163 00:06:07,270 --> 00:06:05,120 this that's important because it gets us 164 00:06:09,670 --> 00:06:07,280 down to a low counting rate 165 00:06:12,309 --> 00:06:09,680 and then the photons that are coupled 166 00:06:13,990 --> 00:06:12,319 into this fiber coupler go to the single 167 00:06:16,629 --> 00:06:14,000 photon county module that reverse bias 168 00:06:19,189 --> 00:06:16,639 diode that i mentioned previously 169 00:06:21,029 --> 00:06:19,199 so it's only about 3 000 counts per 170 00:06:22,469 --> 00:06:21,039 second we're getting here so that's a 171 00:06:25,029 --> 00:06:22,479 low enough rate that it seems 172 00:06:27,350 --> 00:06:25,039 appropriate for this kind of experiment 173 00:06:29,749 --> 00:06:27,360 okay so let's look at the overall 174 00:06:31,350 --> 00:06:29,759 experiment so this is the optics part 175 00:06:33,110 --> 00:06:31,360 and you see the optics part is shown 176 00:06:34,790 --> 00:06:33,120 here this red line 177 00:06:36,550 --> 00:06:34,800 that's representing the light coming 178 00:06:38,710 --> 00:06:36,560 from the light emitting diode to the 179 00:06:39,990 --> 00:06:38,720 single photon counting module here's the 180 00:06:41,029 --> 00:06:40,000 field programmable gate array i 181 00:06:43,510 --> 00:06:41,039 mentioned 182 00:06:45,909 --> 00:06:43,520 it is controlled by the computer but it 183 00:06:48,469 --> 00:06:45,919 counts autonomously and then feeds that 184 00:06:50,550 --> 00:06:48,479 data back to the computer 185 00:06:52,710 --> 00:06:50,560 the single photon county module is also 186 00:06:54,950 --> 00:06:52,720 powered it's powered by this power 187 00:06:57,430 --> 00:06:54,960 supply that i mentioned that has a 188 00:06:59,270 --> 00:06:57,440 resistor capacitor circuit that ramps 189 00:07:01,189 --> 00:06:59,280 the voltage up and down 190 00:07:02,950 --> 00:07:01,199 that's so that the 191 00:07:04,710 --> 00:07:02,960 the inverse 192 00:07:06,629 --> 00:07:04,720 bias diode is a little bit gentle just 193 00:07:08,230 --> 00:07:06,639 like a phototube so you need to ramp the 194 00:07:10,070 --> 00:07:08,240 voltage up and down 195 00:07:11,749 --> 00:07:10,080 and there's an optical isolator there 196 00:07:13,670 --> 00:07:11,759 that's just to avoid ground loops right 197 00:07:14,950 --> 00:07:13,680 because you have a connection here you 198 00:07:16,469 --> 00:07:14,960 have a connection 199 00:07:18,950 --> 00:07:16,479 here 200 00:07:20,390 --> 00:07:18,960 want to have a ground loop so i put an 201 00:07:22,150 --> 00:07:20,400 optical isolator there just to avoid 202 00:07:23,350 --> 00:07:22,160 that 203 00:07:25,430 --> 00:07:23,360 and then it's all controlled by this 204 00:07:28,070 --> 00:07:25,440 labview program it controls the led 205 00:07:31,350 --> 00:07:28,080 controls the counter and it controls the 206 00:07:33,589 --> 00:07:31,360 turning on and off of the detector now 207 00:07:34,469 --> 00:07:33,599 where do i get my random numbers 208 00:07:40,790 --> 00:07:34,479 to 209 00:07:43,029 --> 00:07:40,800 that comes from this whole system down 210 00:07:44,950 --> 00:07:43,039 here which is completely independent 211 00:07:46,390 --> 00:07:44,960 it's not a computer 212 00:07:48,469 --> 00:07:46,400 it is 213 00:07:49,589 --> 00:07:48,479 hardware implemented and 214 00:07:51,189 --> 00:07:49,599 this is the 215 00:07:52,710 --> 00:07:51,199 upgrade in the random number generator 216 00:07:54,230 --> 00:07:52,720 that i said that dr mossbridge and i are 217 00:07:55,029 --> 00:07:54,240 so excited about and i'll tell you about 218 00:07:57,029 --> 00:07:55,039 that 219 00:07:59,430 --> 00:07:57,039 next 220 00:08:00,950 --> 00:07:59,440 so um 221 00:08:03,110 --> 00:08:00,960 actually let me point out before i go to 222 00:08:05,270 --> 00:08:03,120 that next slide that there's 223 00:08:07,589 --> 00:08:05,280 a photo multiplier here 224 00:08:09,189 --> 00:08:07,599 this is independent of the photo 225 00:08:10,950 --> 00:08:09,199 detector here in the single photon 226 00:08:13,029 --> 00:08:10,960 counting module this is an independent 227 00:08:15,110 --> 00:08:13,039 photo multiplier attached to a big tank 228 00:08:16,790 --> 00:08:15,120 of simulator oil this thing is big it's 229 00:08:17,990 --> 00:08:16,800 it spans between two levels in the 230 00:08:19,589 --> 00:08:18,000 building 231 00:08:21,589 --> 00:08:19,599 and then it goes through some amplifiers 232 00:08:22,950 --> 00:08:21,599 and threshold discriminator and then it 233 00:08:24,550 --> 00:08:22,960 hooks up to a pseudo-random number 234 00:08:26,230 --> 00:08:24,560 generator but the numbers that are 235 00:08:27,909 --> 00:08:26,240 generated aren't just pseudorandom it 236 00:08:29,510 --> 00:08:27,919 actually incorporates 237 00:08:31,029 --> 00:08:29,520 the true randomness over here and i'll 238 00:08:33,909 --> 00:08:31,039 explain how that works as i go through 239 00:08:36,230 --> 00:08:33,919 the those next slides 240 00:08:38,070 --> 00:08:36,240 so this is the top end of a photo 241 00:08:39,110 --> 00:08:38,080 multiplier tube it's it's pretty big 242 00:08:42,149 --> 00:08:39,120 it's uh 243 00:08:44,230 --> 00:08:42,159 like kind of the size of a watermelon um 244 00:08:45,910 --> 00:08:44,240 and the photo multiplier tube is down 245 00:08:48,150 --> 00:08:45,920 below and then down below that is tank 246 00:08:50,470 --> 00:08:48,160 scintillator oil supported by these 247 00:08:52,230 --> 00:08:50,480 uh steel beams 248 00:08:53,350 --> 00:08:52,240 and it 249 00:08:54,630 --> 00:08:53,360 when 250 00:08:56,870 --> 00:08:54,640 stuff happens 251 00:08:58,389 --> 00:08:56,880 uh in the atmosphere or nearby you may 252 00:09:00,470 --> 00:08:58,399 get a particle that passes through that 253 00:09:01,829 --> 00:09:00,480 tank you get a flash of light that gives 254 00:09:03,670 --> 00:09:01,839 you a pulse out of the photomultiplier 255 00:09:06,630 --> 00:09:03,680 tube and because it's a pretty big tank 256 00:09:08,870 --> 00:09:06,640 we get about 40 hertz uh pulse rate out 257 00:09:11,030 --> 00:09:08,880 of this 258 00:09:13,590 --> 00:09:11,040 and this provides the true randomness 259 00:09:15,190 --> 00:09:13,600 for our random number generator 260 00:09:18,630 --> 00:09:15,200 then 261 00:09:20,870 --> 00:09:18,640 to get uniform likelihood in the numbers 262 00:09:24,310 --> 00:09:20,880 those true random pulses 263 00:09:25,430 --> 00:09:24,320 are used as the clock inputs on each of 264 00:09:33,350 --> 00:09:25,440 these 265 00:09:35,190 --> 00:09:33,360 bit shift registers 266 00:09:37,350 --> 00:09:35,200 and i can talk more about this when we 267 00:09:39,110 --> 00:09:37,360 get to q a but i enjoyed building this 268 00:09:40,389 --> 00:09:39,120 circuit and 269 00:09:43,030 --> 00:09:40,399 basically 270 00:09:45,350 --> 00:09:43,040 it the pseudorandom numbers are advanced 271 00:09:46,710 --> 00:09:45,360 to the next random number each times 272 00:09:49,269 --> 00:09:46,720 there's a detection in that tank 273 00:09:50,790 --> 00:09:49,279 assimilator oil so when there's a detect 274 00:09:52,550 --> 00:09:50,800 detection in the tank 275 00:09:54,070 --> 00:09:52,560 then you get an advancement to the next 276 00:09:56,389 --> 00:09:54,080 number and because those detections in 277 00:09:58,550 --> 00:09:56,399 the tank are happening at about 40 hertz 278 00:09:59,430 --> 00:09:58,560 about every two seconds you get a whole 279 00:10:03,670 --> 00:09:59,440 fresh 280 00:10:06,630 --> 00:10:03,680 uh 80 bits here in in these random bits 281 00:10:09,590 --> 00:10:08,470 and that's used 282 00:10:11,430 --> 00:10:09,600 right here 283 00:10:14,710 --> 00:10:11,440 two bits of that information are 284 00:10:16,550 --> 00:10:14,720 collected by the labview system and like 285 00:10:18,790 --> 00:10:16,560 i said these are independent so the 286 00:10:21,590 --> 00:10:18,800 labview system doesn't know what's going 287 00:10:24,550 --> 00:10:21,600 on there's just two wires connected from 288 00:10:26,230 --> 00:10:24,560 that hardware circuit to inputs of the 289 00:10:27,430 --> 00:10:26,240 labview system 290 00:10:29,350 --> 00:10:27,440 and 291 00:10:32,389 --> 00:10:29,360 then they're just literally two jumper 292 00:10:34,310 --> 00:10:32,399 wires like that and the labview system 293 00:10:36,870 --> 00:10:34,320 simply says i want to read these two 294 00:10:38,230 --> 00:10:36,880 digital inputs boom and it gets a random 295 00:10:40,550 --> 00:10:38,240 pair of bits 296 00:10:42,870 --> 00:10:40,560 and uses that to determine what the 297 00:10:44,710 --> 00:10:42,880 duration of the trial will be let me go 298 00:10:46,870 --> 00:10:44,720 through the whole trial so 299 00:10:49,350 --> 00:10:46,880 each time a trial occurs 300 00:10:52,150 --> 00:10:49,360 the system let's say is off initially 301 00:10:53,990 --> 00:10:52,160 right when that trial begins 302 00:10:56,310 --> 00:10:54,000 there's a warm-up period 303 00:10:59,030 --> 00:10:56,320 after the photon counter and photon 304 00:11:01,110 --> 00:10:59,040 source the led are turned on 305 00:11:02,949 --> 00:11:01,120 that warm-up period lasts for six 306 00:11:04,790 --> 00:11:02,959 seconds in my experiment that's 307 00:11:06,310 --> 00:11:04,800 different than dr mossberg's experiment 308 00:11:07,670 --> 00:11:06,320 my system requires the six second 309 00:11:10,389 --> 00:11:07,680 warm-up 310 00:11:12,550 --> 00:11:10,399 and then there's three periods of 311 00:11:14,550 --> 00:11:12,560 counting of 11 seconds each for the 312 00:11:17,030 --> 00:11:14,560 photons so that's when you see on those 313 00:11:18,550 --> 00:11:17,040 plots those three dots at the beginning 314 00:11:21,350 --> 00:11:18,560 you'll see that again 315 00:11:23,350 --> 00:11:21,360 that's or the three x's that's um those 316 00:11:25,670 --> 00:11:23,360 three counts that occur in every trial 317 00:11:27,350 --> 00:11:25,680 regardless of the random number then 318 00:11:29,430 --> 00:11:27,360 depending on the random number that's 319 00:11:33,509 --> 00:11:29,440 chosen 320 00:11:37,110 --> 00:11:33,519 you either have 0 20 30 or 60 additional 321 00:11:39,910 --> 00:11:37,120 counts so those would be 20 30 322 00:11:41,910 --> 00:11:39,920 60 or 0 additional 11 second per period 323 00:11:43,110 --> 00:11:41,920 so this whole trial can go on for 324 00:11:45,829 --> 00:11:43,120 several minutes 325 00:11:48,389 --> 00:11:45,839 after which there's a three second off 326 00:11:50,629 --> 00:11:48,399 time where both the detector and the 327 00:11:52,389 --> 00:11:50,639 source are off before beginning again 328 00:11:54,949 --> 00:11:52,399 and that's a key feature of the 329 00:11:56,949 --> 00:11:54,959 experiment that dr mossbridge did and 330 00:11:59,030 --> 00:11:56,959 seems to be key to getting this to work 331 00:12:02,790 --> 00:11:59,040 and so i replicated that in this 332 00:12:05,990 --> 00:12:04,389 so let's look um 333 00:12:08,069 --> 00:12:06,000 this is the second time you've seen this 334 00:12:09,750 --> 00:12:08,079 before i started out this with my first 335 00:12:11,110 --> 00:12:09,760 slide 336 00:12:13,430 --> 00:12:11,120 but i'm pointing to different things 337 00:12:15,990 --> 00:12:13,440 here so i was just talking about how the 338 00:12:18,150 --> 00:12:16,000 random number chooses how long the trial 339 00:12:20,310 --> 00:12:18,160 will go on for and you can see here the 340 00:12:21,910 --> 00:12:20,320 random number shows that the trial would 341 00:12:23,670 --> 00:12:21,920 go on for zero additional counts and you 342 00:12:25,990 --> 00:12:23,680 see there's just those three right it 343 00:12:28,230 --> 00:12:26,000 just did the three initial counts 344 00:12:30,230 --> 00:12:28,240 um you'll see it says here times 10 to 345 00:12:32,150 --> 00:12:30,240 the fourth so this is about 30 000 346 00:12:34,150 --> 00:12:32,160 counts in each one of these 347 00:12:37,190 --> 00:12:34,160 bins right so there's three bins of 348 00:12:38,870 --> 00:12:37,200 counting before uh the random number and 349 00:12:40,310 --> 00:12:38,880 then at this point the random number 350 00:12:41,350 --> 00:12:40,320 said we're not going to go on so okay 351 00:12:43,190 --> 00:12:41,360 fine 352 00:12:45,430 --> 00:12:43,200 here the random number said we're going 353 00:12:47,269 --> 00:12:45,440 to count for 20 more times 354 00:12:49,430 --> 00:12:47,279 and here 30 more here's another 20. 355 00:12:51,350 --> 00:12:49,440 here's another one where it just counted 356 00:12:53,030 --> 00:12:51,360 uh for three and then stopped and here's 357 00:12:55,990 --> 00:12:53,040 one where it went on for 60 additional 358 00:12:58,949 --> 00:12:56,710 so 359 00:13:01,110 --> 00:12:58,959 the trials have a minimum of a 3 and a 360 00:13:05,030 --> 00:13:01,120 maximum of 63 361 00:13:08,389 --> 00:13:07,430 so here's what the data looked like over 362 00:13:10,949 --> 00:13:08,399 the whole 363 00:13:14,470 --> 00:13:10,959 six month plus period of time 364 00:13:18,389 --> 00:13:14,480 we completed 34 454 trials 365 00:13:20,629 --> 00:13:18,399 for a total of 1 million 47 902 of those 366 00:13:21,590 --> 00:13:20,639 11 second measurements 367 00:13:24,310 --> 00:13:21,600 and 368 00:13:27,509 --> 00:13:24,320 so there's a dot on this plot for each 369 00:13:29,509 --> 00:13:27,519 one of those one million measurements 370 00:13:30,870 --> 00:13:29,519 you can see there's 371 00:13:32,230 --> 00:13:30,880 quite a 372 00:13:33,670 --> 00:13:32,240 a lot of interesting features in this 373 00:13:35,829 --> 00:13:33,680 data 374 00:13:38,069 --> 00:13:35,839 there's sort of a general downtrend 375 00:13:39,430 --> 00:13:38,079 there's a daily variation and actually 376 00:13:40,949 --> 00:13:39,440 if you look under that there's actually 377 00:13:43,189 --> 00:13:40,959 twice daily variation you can't really 378 00:13:44,550 --> 00:13:43,199 see here but these little bumps you're 379 00:13:47,110 --> 00:13:44,560 seeing you know 380 00:13:49,030 --> 00:13:47,120 one two three four five those little 381 00:13:53,350 --> 00:13:49,040 bumps are each one day 382 00:13:58,150 --> 00:13:55,910 there's also this sort of larger 383 00:14:00,870 --> 00:13:58,160 movement about every 25 days there's 384 00:14:02,389 --> 00:14:00,880 these kind of larger movements and dips 385 00:14:04,069 --> 00:14:02,399 and these are not particularly 386 00:14:05,829 --> 00:14:04,079 correlated with times that i went in the 387 00:14:06,870 --> 00:14:05,839 room to backup data or anything like 388 00:14:08,550 --> 00:14:06,880 that 389 00:14:09,750 --> 00:14:08,560 this is one continuous run of the 390 00:14:12,150 --> 00:14:09,760 experiment 391 00:14:13,910 --> 00:14:12,160 that's actually still run 392 00:14:15,269 --> 00:14:13,920 was still running until tuesday when i 393 00:14:17,269 --> 00:14:15,279 shut it down 394 00:14:19,590 --> 00:14:17,279 so 395 00:14:21,350 --> 00:14:19,600 the computer was not restart the 396 00:14:22,870 --> 00:14:21,360 software was running continuously all 397 00:14:24,790 --> 00:14:22,880 the hardware was running continuously 398 00:14:26,389 --> 00:14:24,800 there were no power outages 399 00:14:28,310 --> 00:14:26,399 during the whole time 400 00:14:30,389 --> 00:14:28,320 you can also see there's interesting 401 00:14:31,750 --> 00:14:30,399 things going up here and going down here 402 00:14:34,629 --> 00:14:31,760 which 403 00:14:35,990 --> 00:14:34,639 i'll talk about in a couple slides later 404 00:14:38,470 --> 00:14:36,000 i want to point out that there's a 405 00:14:39,670 --> 00:14:38,480 really big change in the data right here 406 00:14:41,110 --> 00:14:39,680 that 407 00:14:43,590 --> 00:14:41,120 up to here 408 00:14:45,350 --> 00:14:43,600 it's kind of sort of a similar pattern 409 00:14:48,310 --> 00:14:45,360 and then the pattern really changes i'll 410 00:14:49,910 --> 00:14:48,320 talk about that in the next slide 411 00:14:51,990 --> 00:14:49,920 so 412 00:14:53,030 --> 00:14:52,000 dr mosbridge noticed 413 00:14:54,710 --> 00:14:53,040 that 414 00:14:55,509 --> 00:14:54,720 you know just looking things up online 415 00:14:57,350 --> 00:14:55,519 like 416 00:14:58,790 --> 00:14:57,360 what happened on the 17th of january and 417 00:15:01,030 --> 00:14:58,800 she looked at some newspaper headlines 418 00:15:03,189 --> 00:15:01,040 and there was this headline about 419 00:15:04,629 --> 00:15:03,199 officials being pegged as uh you know 420 00:15:05,990 --> 00:15:04,639 for stuff 421 00:15:07,509 --> 00:15:06,000 um 422 00:15:08,710 --> 00:15:07,519 that was a major flashpoint that didn't 423 00:15:09,990 --> 00:15:08,720 turn out to be a big flashpoint but 424 00:15:11,430 --> 00:15:10,000 there was a lot of energy a lot of 425 00:15:13,269 --> 00:15:11,440 concern about it 426 00:15:14,629 --> 00:15:13,279 so maybe emotions affect these things 427 00:15:16,629 --> 00:15:14,639 like they affect the global 428 00:15:18,629 --> 00:15:16,639 consciousness project 429 00:15:20,310 --> 00:15:18,639 there's also striking situations where 430 00:15:23,430 --> 00:15:20,320 you don't see anything the here 431 00:15:25,030 --> 00:15:23,440 september 22nd is the 432 00:15:27,670 --> 00:15:25,040 fall equinox and here's the winter 433 00:15:30,949 --> 00:15:27,680 solstice on december 21st and there's no 434 00:15:34,790 --> 00:15:32,870 thing that seems to be happening there 435 00:15:37,509 --> 00:15:34,800 but there's other ones like election day 436 00:15:39,350 --> 00:15:37,519 uh november 3rd appears to be just right 437 00:15:41,430 --> 00:15:39,360 before there's this significant change 438 00:15:43,269 --> 00:15:41,440 in the data and these could just be 439 00:15:45,590 --> 00:15:43,279 coincidences maybe this is when the 440 00:15:47,110 --> 00:15:45,600 weather changed or something in berkeley 441 00:15:49,269 --> 00:15:47,120 so 442 00:15:50,629 --> 00:15:49,279 um this is interesting but it's not the 443 00:15:52,629 --> 00:15:50,639 main focus of this talk so i'm going to 444 00:15:54,470 --> 00:15:52,639 set this aside for now and get back to 445 00:15:56,470 --> 00:15:54,480 the main focus which is looking at the 446 00:16:00,230 --> 00:15:56,480 correlations within each run with it 447 00:16:04,870 --> 00:16:01,030 so 448 00:16:08,870 --> 00:16:07,030 things that are really outlined here 449 00:16:10,230 --> 00:16:08,880 above and below 450 00:16:42,790 --> 00:16:10,240 i 451 00:16:45,670 --> 00:16:42,800 be groups 452 00:16:47,430 --> 00:16:45,680 and so i used that in 453 00:16:49,030 --> 00:16:47,440 noticing what are the outliers and 454 00:16:50,710 --> 00:16:49,040 setting them aside 455 00:16:53,030 --> 00:16:50,720 you'll see later i do the analysis with 456 00:16:55,509 --> 00:16:53,040 and without the outliers and the results 457 00:16:57,509 --> 00:16:55,519 are actually fairly similar but this was 458 00:16:59,670 --> 00:16:57,519 one of the initial things i did was to 459 00:17:01,620 --> 00:16:59,680 identify outliers 460 00:17:03,030 --> 00:17:01,630 and so there's my outliers 461 00:17:04,230 --> 00:17:03,040 [Music] 462 00:17:06,870 --> 00:17:04,240 there are approximately a thousand 463 00:17:09,029 --> 00:17:06,880 outliers in the whole million counts 464 00:17:10,630 --> 00:17:09,039 uh but they cluster in about 64 out of 465 00:17:12,949 --> 00:17:10,640 the 34 000 trials so they're pretty 466 00:17:15,350 --> 00:17:12,959 heavily clustered and so 467 00:17:17,029 --> 00:17:15,360 uh can be fairly um 468 00:17:18,630 --> 00:17:17,039 you just remove those trials and it's 469 00:17:21,350 --> 00:17:18,640 pretty straightforward since we're doing 470 00:17:23,350 --> 00:17:21,360 a trial by trial 471 00:17:25,510 --> 00:17:23,360 approaching the analysis 472 00:17:27,829 --> 00:17:25,520 okay now this is the third time i'm 473 00:17:29,750 --> 00:17:27,839 showing you this slide 474 00:17:31,909 --> 00:17:29,760 i've changed things a little bit 475 00:17:34,150 --> 00:17:31,919 i'm calling attention to the trials that 476 00:17:36,630 --> 00:17:34,160 have data after the decision so remember 477 00:17:38,710 --> 00:17:36,640 there's a decision here by random number 478 00:17:41,350 --> 00:17:38,720 as to how long the trial will go on 479 00:17:44,310 --> 00:17:41,360 whether it's going to go on for 0 20 30 480 00:17:45,909 --> 00:17:44,320 or 60 counts however i'm 481 00:17:48,390 --> 00:17:45,919 paying special attention to the ones 482 00:17:49,430 --> 00:17:48,400 that have at least some counts after the 483 00:17:51,909 --> 00:17:49,440 decision 484 00:17:54,070 --> 00:17:51,919 because an analysis approach that dr 485 00:17:56,390 --> 00:17:54,080 mosbridge came up with utilizes a 486 00:17:59,830 --> 00:17:56,400 correlation between those before and 487 00:18:03,190 --> 00:18:00,789 okay 488 00:18:04,950 --> 00:18:03,200 so here's a schematic of that analysis 489 00:18:07,590 --> 00:18:04,960 that dr mossbridge came up with and that 490 00:18:09,110 --> 00:18:07,600 i implemented in matlab 491 00:18:09,990 --> 00:18:09,120 so 492 00:18:16,150 --> 00:18:10,000 the 493 00:18:17,830 --> 00:18:16,160 collected 494 00:18:20,070 --> 00:18:17,840 and so 495 00:18:22,230 --> 00:18:20,080 the 496 00:18:23,830 --> 00:18:22,240 for each day 497 00:18:25,590 --> 00:18:23,840 we look at the 498 00:18:27,110 --> 00:18:25,600 pre-decision data on the trials and we 499 00:18:28,390 --> 00:18:27,120 look at the post-decision data on the 500 00:18:29,270 --> 00:18:28,400 trials 501 00:18:31,830 --> 00:18:29,280 and 502 00:18:33,430 --> 00:18:31,840 we average over actually just two of the 503 00:18:36,230 --> 00:18:33,440 three pre-decision 504 00:18:38,870 --> 00:18:36,240 data counts and we average over all of 505 00:18:41,350 --> 00:18:38,880 the post-decision date accounts okay 506 00:18:45,430 --> 00:18:41,360 those averages form an x-y pair in some 507 00:18:46,630 --> 00:18:45,440 arbitrary space for each trial okay so 508 00:18:48,789 --> 00:18:46,640 now we do 509 00:18:51,590 --> 00:18:48,799 is 510 00:18:54,710 --> 00:18:51,600 depending on the duration of that trial 511 00:18:56,789 --> 00:18:54,720 we sort those x y values 512 00:18:59,430 --> 00:18:56,799 so that they contribute to either 513 00:19:02,150 --> 00:18:59,440 an average of the 20 514 00:19:04,549 --> 00:19:02,160 so so in other words all the x's 515 00:19:06,710 --> 00:19:04,559 for for the 20 duration trials get 516 00:19:08,870 --> 00:19:06,720 averaged and all the y's for the 20 517 00:19:12,390 --> 00:19:08,880 duration trials get averaged that forms 518 00:19:15,270 --> 00:19:12,400 this x20 y20 pair same way for the 30s 519 00:19:17,510 --> 00:19:15,280 same way for the 60s so we have three xy 520 00:19:19,909 --> 00:19:17,520 pairs and we do a correlation and we get 521 00:19:21,190 --> 00:19:19,919 the row value or we're just calling it r 522 00:19:22,230 --> 00:19:21,200 here 523 00:19:23,029 --> 00:19:22,240 and that 524 00:19:25,590 --> 00:19:23,039 uh 525 00:19:28,150 --> 00:19:25,600 that our value then gets averaged over 526 00:19:29,350 --> 00:19:28,160 all 210 days so we get one r value for 527 00:19:32,549 --> 00:19:29,360 each day 528 00:19:33,430 --> 00:19:32,559 and then we average those 210 r values 529 00:19:34,470 --> 00:19:33,440 and 530 00:19:36,630 --> 00:19:34,480 um 531 00:19:38,950 --> 00:19:36,640 what we find is a rather strong 532 00:19:40,710 --> 00:19:38,960 correlation the average correlation is 533 00:19:42,710 --> 00:19:40,720 quite strong and that's shown by this 534 00:19:45,270 --> 00:19:42,720 line here on the graph 535 00:19:46,390 --> 00:19:45,280 almost 0.75 536 00:19:47,590 --> 00:19:46,400 on the other hand 537 00:19:49,750 --> 00:19:47,600 if we 538 00:19:52,870 --> 00:19:49,760 take each x y pair and contribute it 539 00:19:53,669 --> 00:19:52,880 instead to a random 540 00:19:57,990 --> 00:19:53,679 x 541 00:20:00,150 --> 00:19:58,000 even though the actual duration might be 542 00:20:02,710 --> 00:20:00,160 20 it might be con 543 00:20:06,070 --> 00:20:02,720 that x y average might be contributed to 544 00:20:08,310 --> 00:20:06,080 the x 30 y 30 pair for example okay and 545 00:20:10,390 --> 00:20:08,320 we do the scramble in such a way that we 546 00:20:12,070 --> 00:20:10,400 preserve for each day 547 00:20:16,390 --> 00:20:12,080 the number of 548 00:20:17,990 --> 00:20:16,400 x and y that contribute to the x 20 y 20 549 00:20:19,669 --> 00:20:18,000 and the number that contribute to the x 550 00:20:23,190 --> 00:20:19,679 30 y 30 and the number that contribute 551 00:20:25,590 --> 00:20:23,200 to the x 60 y60 so we preserve how many 552 00:20:28,950 --> 00:20:25,600 trials contribute to each if we do that 553 00:20:30,310 --> 00:20:28,960 correlation we get again 210 r values 554 00:20:33,350 --> 00:20:30,320 one for each day 555 00:20:35,350 --> 00:20:33,360 and then averaging those 210 values we 556 00:20:37,590 --> 00:20:35,360 get a much weaker correlation 557 00:20:40,390 --> 00:20:37,600 and that's demonstrated by doing this 558 00:20:43,110 --> 00:20:40,400 scramble 40 000 times you know 40 000 559 00:20:44,310 --> 00:20:43,120 different random numbers 560 00:20:46,710 --> 00:20:44,320 and then 561 00:20:49,430 --> 00:20:46,720 um that forms this 562 00:20:50,789 --> 00:20:49,440 histogram here shown 563 00:20:53,270 --> 00:20:50,799 which performs 564 00:20:55,830 --> 00:20:53,280 quite a rather nice bell curve 565 00:21:00,470 --> 00:20:58,710 let me move to the next slide 566 00:21:02,149 --> 00:21:00,480 so here 567 00:21:03,590 --> 00:21:02,159 this is that same plot i just showed you 568 00:21:05,990 --> 00:21:03,600 but just bigger 569 00:21:07,270 --> 00:21:06,000 and here i'm calculating 570 00:21:09,190 --> 00:21:07,280 a sigma 571 00:21:10,549 --> 00:21:09,200 for the 572 00:21:11,669 --> 00:21:10,559 original assignment the correct 573 00:21:13,270 --> 00:21:11,679 assignment 574 00:21:14,390 --> 00:21:13,280 of the data 575 00:21:16,310 --> 00:21:14,400 in 576 00:21:17,669 --> 00:21:16,320 by duration versus the scrambled 577 00:21:18,950 --> 00:21:17,679 assignments 578 00:21:21,350 --> 00:21:18,960 and so 579 00:21:23,190 --> 00:21:21,360 uh the way i've done that is to take the 580 00:21:27,190 --> 00:21:23,200 original r value the correct assignment 581 00:21:29,750 --> 00:21:27,200 r value subtract the r value for the 582 00:21:31,990 --> 00:21:29,760 average of the scrambles and then divide 583 00:21:34,950 --> 00:21:32,000 by the standard deviation for those 584 00:21:39,190 --> 00:21:34,960 scrambles and that produces a 585 00:21:44,710 --> 00:21:41,990 i mentioned earlier that this is 586 00:21:46,549 --> 00:21:44,720 pretty robust to outlier removal so if i 587 00:21:48,310 --> 00:21:46,559 put those outliers back in like just 588 00:21:50,710 --> 00:21:48,320 ignore that part of the presentation 589 00:21:53,350 --> 00:21:50,720 where i talked about outliers 590 00:21:57,350 --> 00:21:53,360 then we get a sigma of 5.27 it's not 591 00:21:59,830 --> 00:21:58,470 um 592 00:22:02,710 --> 00:21:59,840 this is 593 00:22:04,149 --> 00:22:02,720 so far the major result that we've come 594 00:22:06,390 --> 00:22:04,159 up with 595 00:22:09,190 --> 00:22:06,400 it's the um 596 00:22:10,230 --> 00:22:09,200 it's the strongest result so far and 597 00:22:13,990 --> 00:22:10,240 we're still 598 00:22:18,230 --> 00:22:14,000 doing a lot of analysis to figure out if 599 00:22:19,990 --> 00:22:18,240 we can come up with um something better 600 00:22:21,750 --> 00:22:20,000 in addition to this 601 00:22:24,310 --> 00:22:21,760 but in the meantime 602 00:22:26,789 --> 00:22:24,320 dr mossbridge has also looked at 603 00:22:27,590 --> 00:22:26,799 some day night variation because 604 00:22:29,750 --> 00:22:27,600 uh 605 00:22:30,870 --> 00:22:29,760 remember the experiment she did she only 606 00:22:32,789 --> 00:22:30,880 measured during the day and i'm 607 00:22:34,310 --> 00:22:32,799 measuring day and night so that gives an 608 00:22:36,149 --> 00:22:34,320 opportunity to compare those so i'll 609 00:22:37,350 --> 00:22:36,159 show that in the next line one of the 610 00:22:38,149 --> 00:22:37,360 things that 611 00:22:40,230 --> 00:22:38,159 um 612 00:22:41,669 --> 00:22:40,240 these are slides generated by dr 613 00:22:42,789 --> 00:22:41,679 mossbridge that i've put into this 614 00:22:43,750 --> 00:22:42,799 presentation 615 00:22:46,070 --> 00:22:43,760 um 616 00:22:48,470 --> 00:22:46,080 one of the things that she noticed is 617 00:22:50,549 --> 00:22:48,480 that there's a significant difference 618 00:22:52,789 --> 00:22:50,559 between day and night data so looking 619 00:22:55,110 --> 00:22:52,799 over the whole 620 00:22:57,590 --> 00:22:55,120 six plus months of data 621 00:22:59,590 --> 00:22:57,600 um and this is sort of 622 00:23:01,510 --> 00:22:59,600 you know it's it's sort of sort of 623 00:23:03,669 --> 00:23:01,520 significant sort of in the noise we're 624 00:23:05,750 --> 00:23:03,679 not claiming the significance of this 625 00:23:06,950 --> 00:23:05,760 uh at this point but you see that 626 00:23:08,789 --> 00:23:06,960 there's this kind of interesting 627 00:23:10,470 --> 00:23:08,799 reversal 628 00:23:12,070 --> 00:23:10,480 that nighttime data has kind of an 629 00:23:13,270 --> 00:23:12,080 opposite character to date time data in 630 00:23:16,310 --> 00:23:13,280 a certain way 631 00:23:18,470 --> 00:23:16,320 in in how the how the data separates by 632 00:23:20,230 --> 00:23:18,480 trial duration 633 00:23:21,110 --> 00:23:20,240 we see that again here 634 00:23:22,470 --> 00:23:21,120 so 635 00:23:24,310 --> 00:23:22,480 horizontally are three different 636 00:23:25,590 --> 00:23:24,320 comparisons here this is 637 00:23:27,669 --> 00:23:25,600 the um 638 00:23:30,470 --> 00:23:27,679 what i call the 20s where there's 639 00:23:31,909 --> 00:23:30,480 20 counts after the decision and this is 640 00:23:33,510 --> 00:23:31,919 the zeros where there's zero counts 641 00:23:35,510 --> 00:23:33,520 after the decision you see the 642 00:23:37,510 --> 00:23:35,520 comparison there and then at night time 643 00:23:39,110 --> 00:23:37,520 you get the reverse of that 644 00:23:41,190 --> 00:23:39,120 well i should say this is 645 00:23:43,750 --> 00:23:41,200 data before the winter solstice so i'm 646 00:23:45,669 --> 00:23:43,760 going to show you two plots two charts 647 00:23:47,190 --> 00:23:45,679 of six plots each before the winter 648 00:23:49,510 --> 00:23:47,200 solstice and after the winter solstice 649 00:23:52,149 --> 00:23:49,520 okay so this is the first of two 650 00:23:53,350 --> 00:23:52,159 slides before the winter solstice 651 00:23:54,149 --> 00:23:53,360 um 652 00:23:56,149 --> 00:23:54,159 and 653 00:23:59,990 --> 00:23:56,159 you can see that there's 654 00:24:02,310 --> 00:24:00,000 this reversal right like and and here 655 00:24:05,029 --> 00:24:02,320 again more showing the reversal 656 00:24:07,029 --> 00:24:05,039 okay now after the winter solstice look 657 00:24:08,630 --> 00:24:07,039 at this 658 00:24:10,310 --> 00:24:08,640 this is in the same direction instead of 659 00:24:12,470 --> 00:24:10,320 reversed 660 00:24:13,909 --> 00:24:12,480 so this is just really a curious thing 661 00:24:16,390 --> 00:24:13,919 like we don't know why what this is 662 00:24:18,390 --> 00:24:16,400 about but it seems like something to 663 00:24:19,830 --> 00:24:18,400 investigate further and here's the other 664 00:24:22,070 --> 00:24:19,840 plot 665 00:24:25,110 --> 00:24:22,080 showing that as well 666 00:24:27,029 --> 00:24:25,120 you can see here maybe there's some 667 00:24:30,630 --> 00:24:27,039 uh it's not quite reversed maybe there's 668 00:24:34,549 --> 00:24:32,310 fluctuation in how these things relate 669 00:24:36,630 --> 00:24:34,559 to each other for some curves relating 670 00:24:38,230 --> 00:24:36,640 than others 671 00:24:39,510 --> 00:24:38,240 so to sum up 672 00:24:41,269 --> 00:24:39,520 um 673 00:24:43,029 --> 00:24:41,279 this has been a replication and 674 00:24:43,909 --> 00:24:43,039 extension 675 00:24:46,630 --> 00:24:43,919 um 676 00:24:47,909 --> 00:24:46,640 the up the apparatus has been upgraded 677 00:24:49,830 --> 00:24:47,919 um 678 00:24:51,350 --> 00:24:49,840 i've run day night collection instead of 679 00:24:52,149 --> 00:24:51,360 just during the days 680 00:24:53,990 --> 00:24:52,159 um 681 00:24:56,310 --> 00:24:54,000 it's possible that there's sensitivity 682 00:24:58,310 --> 00:24:56,320 to astronomical or emotional events that 683 00:25:00,310 --> 00:24:58,320 bears further investigation 684 00:25:03,190 --> 00:25:00,320 um and there's a lot of work to do in 685 00:25:04,789 --> 00:25:03,200 understanding these causally ambiguous 686 00:25:05,909 --> 00:25:04,799 duration sorting and why that's 687 00:25:06,950 --> 00:25:05,919 happening 688 00:25:09,350 --> 00:25:06,960 um 689 00:25:12,870 --> 00:25:09,360 so i'll close there and ask questions 690 00:25:16,549 --> 00:25:14,470 thank you so much for that really 691 00:25:18,950 --> 00:25:16,559 interesting presentation 692 00:25:21,110 --> 00:25:18,960 and we've got quite a lot of buzz in the 693 00:25:22,710 --> 00:25:21,120 chat so i'm going to go through some of 694 00:25:23,909 --> 00:25:22,720 those questions and 695 00:25:25,029 --> 00:25:23,919 um 696 00:25:28,149 --> 00:25:25,039 hopefully we can get through some of 697 00:25:31,350 --> 00:25:28,159 them in this time um let's see so the 698 00:25:34,710 --> 00:25:31,360 first question is about 699 00:25:36,950 --> 00:25:34,720 whether any of the variations in counts 700 00:25:38,870 --> 00:25:36,960 could be correlated with sun activity 701 00:25:40,390 --> 00:25:38,880 like sun spots or flares 702 00:25:42,710 --> 00:25:40,400 um 703 00:25:44,390 --> 00:25:42,720 yeah there's a slide here 704 00:25:47,830 --> 00:25:44,400 about um 705 00:25:48,870 --> 00:25:47,840 geomagnetic uh fluctuations right here 706 00:25:53,029 --> 00:25:48,880 um 707 00:25:54,470 --> 00:25:53,039 there's 708 00:25:57,110 --> 00:25:54,480 that would be a good thing to look at 709 00:25:59,590 --> 00:25:57,120 yes 710 00:26:02,310 --> 00:25:59,600 could i add to that just briefly 711 00:26:04,549 --> 00:26:02,320 yes please um so the donald are there 712 00:26:06,470 --> 00:26:04,559 geometric magnetic or these are yeah 713 00:26:08,390 --> 00:26:06,480 these are geomagnetic field fluctuations 714 00:26:10,710 --> 00:26:08,400 with the seasons you know the earth is 715 00:26:13,269 --> 00:26:10,720 in this little spot in the middle 716 00:26:14,789 --> 00:26:13,279 and so clearly even within each season 717 00:26:17,190 --> 00:26:14,799 well not clearly because you can't see 718 00:26:19,350 --> 00:26:17,200 but the sun is over here 719 00:26:21,350 --> 00:26:19,360 i don't know if you can see my mouse um 720 00:26:23,990 --> 00:26:21,360 no can't see your mouse yeah the sun 721 00:26:26,710 --> 00:26:24,000 would be over here right exactly and so 722 00:26:28,870 --> 00:26:26,720 at night time that's flipped 723 00:26:30,630 --> 00:26:28,880 so this shows the seasonal 724 00:26:32,230 --> 00:26:30,640 and by inference 725 00:26:34,549 --> 00:26:32,240 the day night difference so there could 726 00:26:37,190 --> 00:26:34,559 be a whole geomagnetic effect that could 727 00:26:38,789 --> 00:26:37,200 happen on the electrons in the detector 728 00:26:42,470 --> 00:26:38,799 as potentially as well as the medium 729 00:26:49,190 --> 00:26:43,590 thank you 730 00:26:51,830 --> 00:26:49,200 next question are you planning on 731 00:26:53,909 --> 00:26:51,840 exploring any pre-registered event 732 00:26:55,909 --> 00:26:53,919 correlations with these data patterns as 733 00:26:59,110 --> 00:26:55,919 with the gcp 734 00:27:01,029 --> 00:26:59,120 data that we know more about 735 00:27:02,630 --> 00:27:01,039 um i don't have 736 00:27:03,909 --> 00:27:02,640 i don't know what my plans are with this 737 00:27:07,590 --> 00:27:03,919 next exactly 738 00:27:09,110 --> 00:27:07,600 but that could be a good idea yeah yeah 739 00:27:10,870 --> 00:27:09,120 i would like to say like 740 00:27:12,789 --> 00:27:10,880 this we just discovered those very 741 00:27:15,430 --> 00:27:12,799 recently and that wasn't the main point 742 00:27:17,510 --> 00:27:15,440 but there's a lot of work to do 743 00:27:18,310 --> 00:27:17,520 yeah it's very interesting 744 00:27:19,110 --> 00:27:18,320 um 745 00:27:22,389 --> 00:27:19,120 see 746 00:27:25,269 --> 00:27:22,399 um do you have any information on what 747 00:27:26,230 --> 00:27:25,279 causes the diurnal variation what about 748 00:27:27,990 --> 00:27:26,240 the 749 00:27:29,830 --> 00:27:28,000 steep dips that seem to come more or 750 00:27:33,029 --> 00:27:29,840 less regularly especially in the first 751 00:27:35,110 --> 00:27:33,039 part of the data many days apart 752 00:27:37,750 --> 00:27:35,120 i don't know what the steep tips are 753 00:27:39,510 --> 00:27:37,760 um i i kept track of when i would go in 754 00:27:41,590 --> 00:27:39,520 the room to upload data and stuff like 755 00:27:43,190 --> 00:27:41,600 that or when i had the lights on there 756 00:27:45,269 --> 00:27:43,200 was one time where the lights got 757 00:27:46,950 --> 00:27:45,279 changed and so people other people were 758 00:27:49,669 --> 00:27:46,960 in the room for a little while changing 759 00:27:51,909 --> 00:27:49,679 the lights um and 760 00:27:54,230 --> 00:27:51,919 that's not strong that you know maybe 761 00:27:56,389 --> 00:27:54,240 one of the things is due to that but 762 00:27:58,549 --> 00:27:56,399 that doesn't seem to be a major cause 763 00:28:00,230 --> 00:27:58,559 as far as the diurnal variations could 764 00:28:01,990 --> 00:28:00,240 easily be temperature 765 00:28:03,430 --> 00:28:02,000 you know almost any instrumentation will 766 00:28:04,470 --> 00:28:03,440 vary with temperature 767 00:28:07,190 --> 00:28:04,480 um 768 00:28:08,630 --> 00:28:07,200 for the latter half of the the year 769 00:28:11,510 --> 00:28:08,640 uh i've now been running with a 770 00:28:14,070 --> 00:28:11,520 thermometer in the room uh logging so 771 00:28:17,110 --> 00:28:14,080 we'll see if that is correlated 772 00:28:19,510 --> 00:28:17,120 so watch this space yeah 773 00:28:21,110 --> 00:28:19,520 yeah this is very interesting it's very 774 00:28:21,990 --> 00:28:21,120 hot off the press as well 775 00:28:24,310 --> 00:28:22,000 um 776 00:28:27,029 --> 00:28:24,320 there was a major increase in sunspots 777 00:28:29,029 --> 00:28:27,039 and solar flux in november to december 778 00:28:30,789 --> 00:28:29,039 um in this person says it might be 779 00:28:33,190 --> 00:28:30,799 interesting to look at solar weather 780 00:28:34,950 --> 00:28:33,200 correlations as you go forward 781 00:28:35,990 --> 00:28:34,960 yes i think that's a good thing to look 782 00:28:39,110 --> 00:28:36,000 at 783 00:28:40,549 --> 00:28:39,120 actually because um 784 00:28:43,590 --> 00:28:40,559 who was the one who asked that question 785 00:28:45,110 --> 00:28:43,600 doug that was doug richards yeah doug 786 00:28:47,350 --> 00:28:45,120 talk to us maybe i mean we need someone 787 00:28:48,950 --> 00:28:47,360 who knows what they're doing there 788 00:28:50,389 --> 00:28:48,960 that'd be great 789 00:28:51,909 --> 00:28:50,399 this is the purpose of this conference 790 00:28:53,669 --> 00:28:51,919 to make connections 791 00:28:55,830 --> 00:28:53,679 insight so that's great 792 00:28:57,669 --> 00:28:55,840 um another question from york can you 793 00:28:59,750 --> 00:28:57,679 use the correlation measurement between 794 00:29:02,630 --> 00:28:59,760 the pre-decision measurement and the 795 00:29:04,630 --> 00:29:02,640 first 20 post decision values to predict 796 00:29:07,110 --> 00:29:04,640 whether the remaining duration after 20 797 00:29:09,110 --> 00:29:07,120 trials is an additional 0 10 or 40 798 00:29:12,630 --> 00:29:09,120 trials and with what statistical 799 00:29:14,630 --> 00:29:12,640 confidence can you make this prediction 800 00:29:17,029 --> 00:29:14,640 uh i haven't come up with a way to do 801 00:29:18,789 --> 00:29:17,039 that uh i don't know if dr mossbridge 802 00:29:20,950 --> 00:29:18,799 has 803 00:29:22,789 --> 00:29:20,960 um yeah i'm working on that that's not 804 00:29:25,350 --> 00:29:22,799 in this paper but that's a that's 805 00:29:27,590 --> 00:29:25,360 obviously an interesting topic 806 00:29:29,830 --> 00:29:27,600 yeah lots of lots of fascinating 807 00:29:33,110 --> 00:29:29,840 possibilities here um 808 00:29:34,870 --> 00:29:33,120 can you both say anything about um what 809 00:29:36,549 --> 00:29:34,880 the next steps are then with this 810 00:29:38,830 --> 00:29:36,559 research agenda what what are you 811 00:29:41,269 --> 00:29:38,840 planning 812 00:29:43,750 --> 00:29:41,279 next well 813 00:29:45,350 --> 00:29:43,760 like i said we've got uh more 814 00:29:46,630 --> 00:29:45,360 additional data logging running since 815 00:29:49,350 --> 00:29:46,640 february 816 00:29:50,950 --> 00:29:49,360 we'll see if that tells us anything 817 00:29:52,630 --> 00:29:50,960 um 818 00:29:53,990 --> 00:29:52,640 we've got that whole set of data that i 819 00:29:57,029 --> 00:29:54,000 haven't looked at yet i've just been 820 00:29:58,389 --> 00:29:57,039 uploading it and backing it up 821 00:29:59,510 --> 00:29:58,399 um 822 00:30:01,190 --> 00:29:59,520 there's 823 00:30:03,350 --> 00:30:01,200 uh 824 00:30:06,149 --> 00:30:03,360 lots of different ways we could 825 00:30:07,990 --> 00:30:06,159 set up a photon counting 826 00:30:09,669 --> 00:30:08,000 and it may also be interesting to look 827 00:30:11,830 --> 00:30:09,679 at 828 00:30:14,389 --> 00:30:11,840 fermions instead of bosons 829 00:30:19,029 --> 00:30:14,399 so if we were to count electrons 830 00:30:22,789 --> 00:30:21,350 julia 831 00:30:24,070 --> 00:30:22,799 um i think those are interesting 832 00:30:25,590 --> 00:30:24,080 questions i think there are also 833 00:30:26,870 --> 00:30:25,600 interesting questions about when the 834 00:30:31,110 --> 00:30:26,880 knowledge 835 00:30:32,630 --> 00:30:31,120 the duration occurs um sort of an 836 00:30:34,630 --> 00:30:32,640 ontological 837 00:30:37,029 --> 00:30:34,640 versus epistemological sort of 838 00:30:39,830 --> 00:30:37,039 interpretation of quantum mechanics type 839 00:30:41,190 --> 00:30:39,840 of differentiation um 840 00:30:43,110 --> 00:30:41,200 i think 841 00:30:44,549 --> 00:30:43,120 basically publishing what we have so the 842 00:30:46,389 --> 00:30:44,559 first paper 843 00:30:48,830 --> 00:30:46,399 that i have out there and the conference 844 00:30:50,389 --> 00:30:48,840 proceedings are on like crappy equipment 845 00:30:56,389 --> 00:30:50,399 and 846 00:30:57,669 --> 00:30:56,399 i'm just grateful that i was actually 847 00:30:59,669 --> 00:30:57,679 looking something real and not an 848 00:31:01,750 --> 00:30:59,679 artifact and um 849 00:31:04,230 --> 00:31:01,760 so that's exciting and and sort of 850 00:31:06,549 --> 00:31:04,240 uncovering it more under i i think these 851 00:31:09,350 --> 00:31:06,559 these these seasonal 852 00:31:11,990 --> 00:31:09,360 day night variations are profound 853 00:31:13,430 --> 00:31:12,000 and especially not just the overall 854 00:31:15,110 --> 00:31:13,440 in the overall data but in the actual 855 00:31:16,070 --> 00:31:15,120 relationship between the durations i 856 00:31:16,870 --> 00:31:16,080 think that 857 00:31:20,710 --> 00:31:16,880 the 858 00:31:23,269 --> 00:31:20,720 imagine kind of like different weighted 859 00:31:24,870 --> 00:31:23,279 ropes and oscillating at different 860 00:31:26,950 --> 00:31:24,880 frequencies based on the weight and the 861 00:31:29,269 --> 00:31:26,960 weight is set by the duration sort of 862 00:31:32,149 --> 00:31:29,279 and so i think that that's how i 863 00:31:34,070 --> 00:31:32,159 envision it with no actual 864 00:31:37,110 --> 00:31:34,080 data but just sort of living with this 865 00:31:38,789 --> 00:31:37,120 experiment for a couple of years 866 00:31:41,029 --> 00:31:38,799 that's a good answer 867 00:31:43,909 --> 00:31:41,039 yeah i'll add that 868 00:31:47,190 --> 00:31:43,919 the random numbers in this experiment 869 00:31:48,710 --> 00:31:47,200 are selected once for the the 870 00:31:50,630 --> 00:31:48,720 choice of the four durations it would be 871 00:31:52,149 --> 00:31:50,640 interesting to try 872 00:31:54,789 --> 00:31:52,159 having the first random number just 873 00:31:57,190 --> 00:31:54,799 select whether the experiment concludes 874 00:31:59,669 --> 00:31:57,200 at that moment or not and then draw 875 00:32:01,590 --> 00:31:59,679 another random number to determine 876 00:32:03,830 --> 00:32:01,600 what happens next and whether the 877 00:32:05,990 --> 00:32:03,840 duration goes on longer and then between 878 00:32:08,389 --> 00:32:06,000 the 30 and 60 choice draw another random 879 00:32:10,389 --> 00:32:08,399 number yeah 880 00:32:12,230 --> 00:32:10,399 and there's some indications that if you 881 00:32:14,149 --> 00:32:12,240 don't choose a random duration in other 882 00:32:15,430 --> 00:32:14,159 words at least this is different we 883 00:32:17,430 --> 00:32:15,440 didn't show you this data but i'm just 884 00:32:20,149 --> 00:32:17,440 telling you based on my own observations 885 00:32:22,470 --> 00:32:20,159 um if you don't choose a random duration 886 00:32:24,470 --> 00:32:22,480 you actually might not get this duration 887 00:32:25,909 --> 00:32:24,480 sorting effect at all 888 00:32:27,570 --> 00:32:25,919 so it might be that there has to be a 889 00:32:29,590 --> 00:32:27,580 choice 890 00:32:31,830 --> 00:32:29,600 [Music] 891 00:32:33,590 --> 00:32:31,840 fascinating stuff thank you once again