WEBVTT 00:00:00.000 --> 00:00:03.180 Imagine sitting exactly where you are right now, 00:00:03.660 --> 00:00:05.759 wide awake, just staring at your coffee mug. 00:00:06.440 --> 00:00:09.580 And suddenly a tiny, fully formed, brightly colored 00:00:09.580 --> 00:00:12.519 person just runs out from behind it, sprints 00:00:12.519 --> 00:00:15.300 across your table, and like vanishes behind your 00:00:15.300 --> 00:00:17.929 laptop. Just completely out of nowhere. Exactly. 00:00:18.469 --> 00:00:20.710 You aren't dreaming. You aren't losing your mind 00:00:20.710 --> 00:00:23.469 in the conventional sense, you know. You are 00:00:23.469 --> 00:00:27.170 experiencing a highly documented, bizarrely specific 00:00:27.170 --> 00:00:31.410 medical phenomenon known as Lilliputian hallucinations. 00:00:32.900 --> 00:00:35.420 defining characteristic of that experience, the 00:00:35.420 --> 00:00:37.960 thing that makes it so deeply unsettling, really, 00:00:38.380 --> 00:00:40.640 is that this miniature entity doesn't just float 00:00:40.640 --> 00:00:42.880 in some abstract, hallucinatory void. Yeah, it's 00:00:42.880 --> 00:00:45.119 not like a filter over your vision. No, not at 00:00:45.119 --> 00:00:47.640 all. It obeys the actual physical geometry of 00:00:47.640 --> 00:00:50.039 your room. When the tiny figure runs behind your 00:00:50.039 --> 00:00:52.740 real -world coffee mug, it disappears from your 00:00:52.740 --> 00:00:54.619 line of sight until it comes out the other side. 00:00:54.840 --> 00:00:57.659 Wow. Yeah. Your brain is seamlessly rendering 00:00:57.659 --> 00:01:00.039 an impossible fantasy creature right into your 00:01:00.039 --> 00:01:02.200 physical environment. Welcome to today's Deep 00:01:02.200 --> 00:01:04.620 Dive. We are so glad to have you with us. Today, 00:01:04.620 --> 00:01:07.859 we are unpacking a really wild stack of sources. 00:01:07.980 --> 00:01:10.599 I mean, we've got everything from a fascinating 00:01:10.599 --> 00:01:14.680 Wikipedia entry to an array of deep -cut footnotes. 00:01:14.680 --> 00:01:17.540 Yeah, ranging from mid -century medical journals 00:01:17.540 --> 00:01:20.599 to cutting -edge mycology presentations. Right. 00:01:20.599 --> 00:01:23.719 And it's all centered around this single strange 00:01:23.719 --> 00:01:26.819 glitch in human perception. Our mission today 00:01:26.819 --> 00:01:29.219 is to figure out why the human brain sometimes 00:01:29.219 --> 00:01:32.359 populates our reality. with tiny fairy -tale 00:01:32.359 --> 00:01:35.159 -like entities. And crucially, to look at the 00:01:35.159 --> 00:01:38.060 completely unsolved scientific mystery hidden 00:01:38.060 --> 00:01:40.200 within the wild mushrooms that actually seem 00:01:40.200 --> 00:01:42.939 to trigger them on demand. I am so excited for 00:01:42.939 --> 00:01:45.159 this because it's not just some dry medical reading. 00:01:45.200 --> 00:01:47.980 It's this weird, amazing journey into how our 00:01:47.980 --> 00:01:50.340 perception actually works. It really is a perfect 00:01:50.340 --> 00:01:52.980 case study in how our brains construct reality. 00:01:53.060 --> 00:01:55.079 I mean, we walk around assuming the visual world 00:01:55.079 --> 00:01:57.319 is just a transparent window, right? Yeah, we 00:01:57.319 --> 00:01:59.219 think we just open our eyes and see what is actually 00:01:59.219 --> 00:02:02.459 there. Exactly. Yeah. But this phenomenon proves 00:02:02.459 --> 00:02:05.700 that your visual field is an active, real -time 00:02:05.700 --> 00:02:09.080 rendering engine. And under certain, very specific 00:02:09.080 --> 00:02:12.500 conditions, that rendering engine just gets hijacked. 00:02:12.740 --> 00:02:14.810 Okay, let's unpack this. Because the clinical 00:02:14.810 --> 00:02:16.530 literature has actually been tracking this for 00:02:16.530 --> 00:02:19.009 decades, right? Absolutely. There's this 2021 00:02:19.009 --> 00:02:21.729 systematic review by Bloom in our source notes 00:02:21.729 --> 00:02:24.990 that uses this wonderful, almost poetic phrasing. 00:02:25.370 --> 00:02:28.629 The paper refers to them as Leroy's elusive little 00:02:28.629 --> 00:02:31.189 people named after the French physician Raoul 00:02:31.189 --> 00:02:34.969 Leroy. He was one of the first to formally categorize 00:02:34.969 --> 00:02:37.189 the hallucination back in the early 20th century. 00:02:37.289 --> 00:02:39.150 And the strict definition is really specific, 00:02:39.250 --> 00:02:41.909 isn't it? It is. It strictly refers to hallucinations 00:02:41.909 --> 00:02:45.449 of small humans and or fantasy entities. But 00:02:45.449 --> 00:02:47.530 Leroy noted that these visions aren't just visual 00:02:47.530 --> 00:02:50.210 either. The sources emphasize that Lilliputian 00:02:50.210 --> 00:02:53.550 hallucinations are often multimodal. Multimodal, 00:02:53.669 --> 00:02:56.210 meaning like they hijack multiple sensory inputs 00:02:56.210 --> 00:02:58.729 at once. Precisely. You don't just see the small 00:02:58.729 --> 00:03:01.150 beings. You might hear the distinct pitter patter 00:03:01.150 --> 00:03:03.810 of tiny footsteps on your table. Oh my gosh, 00:03:03.889 --> 00:03:06.849 that is terrifying. Or you might hear high -pitched, 00:03:07.069 --> 00:03:09.819 unintelligible chatter. Patients have even reported 00:03:09.819 --> 00:03:12.199 feeling tiny hands pulling at their clothes or 00:03:12.199 --> 00:03:14.560 just walking across their skin. So it's like 00:03:14.560 --> 00:03:17.360 someone seamlessly dropped a tiny multimodal 00:03:17.360 --> 00:03:19.840 fantasy world right onto your actual kitchen 00:03:19.840 --> 00:03:22.520 table. That is a great way to put it. The brain 00:03:22.520 --> 00:03:25.360 isn't just generating an image. It is generating 00:03:25.360 --> 00:03:28.520 a comprehensive multi -sensory reality designed 00:03:28.520 --> 00:03:30.960 to convince you that this entity is absolutely 00:03:30.960 --> 00:03:33.840 present. Which begs the immediate question, if 00:03:33.840 --> 00:03:36.199 these tiny beings are invading our real physical 00:03:36.199 --> 00:03:39.000 spaces, what exactly throws the door open to 00:03:39.000 --> 00:03:41.400 LeRoy's elusive little people? Right. What causes 00:03:41.400 --> 00:03:44.259 the crash in the rendering engine? Exactly. Our 00:03:44.259 --> 00:03:46.620 sources provide this medical roster of triggers 00:03:46.620 --> 00:03:50.080 and reading through it is honestly baffling because 00:03:50.080 --> 00:03:52.919 the underlying conditions seem to have like nothing 00:03:52.919 --> 00:03:55.379 in common. The list is incredibly diverse. You 00:03:55.379 --> 00:03:58.000 have Alice in Wonderland syndrome, Charles Bonnet 00:03:58.000 --> 00:04:00.560 syndrome, peduncular hallucinosis, schizophrenia. 00:04:00.939 --> 00:04:03.639 and even severe alcohol withdrawal. I mean, wait, 00:04:04.199 --> 00:04:06.639 let me just push back on that for a second. How 00:04:06.639 --> 00:04:09.259 can wildly different things like severe alcohol 00:04:09.259 --> 00:04:12.919 withdrawal, schizophrenia, and rare brain syndromes 00:04:12.919 --> 00:04:15.900 all produce the exact same specific hallucination 00:04:15.900 --> 00:04:18.439 of tiny people? Well, what's fascinating here 00:04:18.439 --> 00:04:21.680 is that this diversity of causes actually tells 00:04:21.680 --> 00:04:24.300 us something profound. It shows that the brain's 00:04:24.300 --> 00:04:27.420 tiny people response isn't just a single localized 00:04:27.420 --> 00:04:31.199 glitch. OK. It's a broader perceptual symptom 00:04:31.199 --> 00:04:33.839 that could be tripped by very different types 00:04:33.839 --> 00:04:36.579 of systemic shocks. Let's look at Charles Bonnet 00:04:36.579 --> 00:04:38.560 syndrome, for example. Right. I know this typically 00:04:38.560 --> 00:04:40.720 happens when someone experiences severe vision 00:04:40.720 --> 00:04:43.680 loss, like from macular degeneration. Their eyes 00:04:43.680 --> 00:04:46.439 are physically failing. Exactly. But how does 00:04:46.439 --> 00:04:49.100 going blind translate to seeing tiny people running 00:04:49.100 --> 00:04:51.120 around your living room? It comes down to how 00:04:51.120 --> 00:04:53.459 the visual cortex handles a sudden information 00:04:53.459 --> 00:04:56.699 vacuum. Your visual cortex is essentially an 00:04:56.699 --> 00:04:59.500 engine that constantly expects fuel. Right? In 00:04:59.500 --> 00:05:01.600 the form of optical data. Right. It wants to 00:05:01.600 --> 00:05:03.600 see things. But when a condition like macular 00:05:03.600 --> 00:05:06.120 degeneration damages the eye, the optic nerve 00:05:06.120 --> 00:05:08.860 stops sending signals. Yeah. But the visual cortex 00:05:08.860 --> 00:05:11.120 doesn't just shut down. It just stays online. 00:05:11.300 --> 00:05:14.180 Yeah. And starved of external input, it starts 00:05:14.180 --> 00:05:16.800 pulling from its own internal archives. Yeah. 00:05:16.800 --> 00:05:18.899 It literally invents images to fill the void. 00:05:19.540 --> 00:05:22.019 So it basically hallucinates out of sheer boredom. 00:05:22.420 --> 00:05:24.680 That's a great way to think of it. It's sensory 00:05:24.680 --> 00:05:28.160 deprivation leading to neural hyper -excitability. 00:05:28.399 --> 00:05:29.980 But then you have something entirely different, 00:05:30.459 --> 00:05:32.779 like peduncular hallucinosis. Right, which sounds 00:05:32.779 --> 00:05:35.680 incredibly intense. It is, because this isn't 00:05:35.680 --> 00:05:38.540 about the eyes at all. This is caused by a structural 00:05:38.540 --> 00:05:41.319 lesion -like physical damage in the brainstem, 00:05:41.879 --> 00:05:44.120 specifically a region called the cerebral peduncle. 00:05:44.439 --> 00:05:46.459 And what does the cerebral peduncle actually 00:05:46.459 --> 00:05:49.620 do? Among other things, that area of the brainstem 00:05:49.620 --> 00:05:52.699 helps regulate the sleep -wake cycle. Think of 00:05:52.699 --> 00:05:55.420 it as a gatekeeper. When that gate is damaged 00:05:55.420 --> 00:05:58.879 by a stroke or a tumor, the barrier between REM 00:05:58.879 --> 00:06:02.040 sleep and waking consciousness becomes highly 00:06:02.040 --> 00:06:05.019 porous. Oh, wow. Yeah, so the brain starts projecting 00:06:05.019 --> 00:06:07.779 vivid dream -like imagery, which is characteristic 00:06:07.779 --> 00:06:10.660 of REM sleep, directly superimposing it over 00:06:10.660 --> 00:06:12.699 the patient's waking visual field. So you are 00:06:12.699 --> 00:06:15.709 literally dreaming while you are awake. And then 00:06:15.709 --> 00:06:18.290 we have Alice in Wonderland syndrome, which I 00:06:18.290 --> 00:06:21.110 understand is often a parietal low glitch where 00:06:21.110 --> 00:06:23.750 proprioception, your brain's map of where your 00:06:23.750 --> 00:06:26.550 body is in space, gets distorted. Right. You 00:06:26.550 --> 00:06:29.910 perceive things or yourself as shrinking or growing. 00:06:30.139 --> 00:06:32.579 Okay, so we have an information vacuum in Charles 00:06:32.579 --> 00:06:35.899 Bonnet, a broken REM sleep gate in peduncular 00:06:35.899 --> 00:06:39.060 hallucinosis, a spatial mapping glitch in Alice 00:06:39.060 --> 00:06:41.639 in Wonderland, plus severe alcohol withdrawal, 00:06:41.699 --> 00:06:44.000 which is just a massive chemical shock to the 00:06:44.000 --> 00:06:46.220 entire nervous system. All entirely different 00:06:46.220 --> 00:06:48.379 biological crises. Right, so my core question 00:06:48.379 --> 00:06:51.459 is this. If the brain is under attack from completely 00:06:51.459 --> 00:06:54.439 different directions, structural damage, vision 00:06:54.439 --> 00:06:57.629 loss, chemical dependency, Why does it default 00:06:57.629 --> 00:07:01.449 to this one highly specific shared hallucination? 00:07:01.629 --> 00:07:03.709 It's a great question. Why doesn't it just produce 00:07:03.709 --> 00:07:06.629 visual static? Why tiny people? Think of your 00:07:06.629 --> 00:07:08.990 brain's visual processing like the predictive 00:07:08.990 --> 00:07:12.290 text engine on your smartphone. Usually, that 00:07:12.290 --> 00:07:14.449 predictive engine guesses correctly based on 00:07:14.449 --> 00:07:16.490 the reality of what you're trying to type. But 00:07:16.490 --> 00:07:18.790 when the system is damaged, starved of data, 00:07:19.009 --> 00:07:21.750 or flooded with chemical noise, the predictive 00:07:21.750 --> 00:07:24.629 engine starts aggressive, erratic autofilling. 00:07:24.949 --> 00:07:27.509 And because we are humans, our autofill is obsessed 00:07:27.509 --> 00:07:30.389 with humans. Exactly. We are social primates. 00:07:30.910 --> 00:07:33.310 Our evolutionary survival has heavily indexed 00:07:33.310 --> 00:07:36.110 our visual cortex to recognize human forms and 00:07:36.110 --> 00:07:39.000 faces. Like seeing faces in clouds. Right, a 00:07:39.000 --> 00:07:42.600 phenomenon called pareidolia. When the visual 00:07:42.600 --> 00:07:45.560 cortex misfires, it doesn't just produce random 00:07:45.560 --> 00:07:48.240 geometric static. It falls back on its deepest, 00:07:48.519 --> 00:07:50.879 most hard -wired pattern recognition software. 00:07:51.459 --> 00:07:53.779 It aggressively searches the visual noise and 00:07:53.779 --> 00:07:56.259 renders anthropomorphic shapes. Okay, that explains 00:07:56.259 --> 00:07:58.579 the people part. But why are they consistently 00:07:58.579 --> 00:08:01.560 Lilliputian? Why are they always tiny? Well, 00:08:01.879 --> 00:08:04.000 scale perception in the brain relies on complex 00:08:04.000 --> 00:08:06.889 contextual clues. Things like distance, shadows 00:08:06.889 --> 00:08:09.290 surrounding objects. When the neural pathways 00:08:09.290 --> 00:08:11.269 governing spatial mapping or visual processing 00:08:11.269 --> 00:08:13.889 are degraded, the brain misplaces the depth and 00:08:13.889 --> 00:08:16.029 scale cues of the hallucinated entity. Oh, I 00:08:16.029 --> 00:08:18.569 see. So it places a highly detailed human form 00:08:18.569 --> 00:08:21.949 into your visual field, but the scale algorithm 00:08:21.949 --> 00:08:25.730 is broken. So it renders the miniature to try 00:08:25.730 --> 00:08:27.709 and make structural sense of the conflicting 00:08:27.709 --> 00:08:31.009 data it's processing. The brain is trying to 00:08:31.009 --> 00:08:33.429 solve a visual math problem with broken numbers 00:08:33.429 --> 00:08:36.250 and the result is a tiny person on your coffee 00:08:36.250 --> 00:08:38.830 mug. That's exactly it. That is fascinating. 00:08:39.230 --> 00:08:42.409 It means this isn't a random glitch. It's a fundamental 00:08:42.409 --> 00:08:45.409 dormant failure mode built into the human hardware. 00:08:45.750 --> 00:08:48.269 Yes. And if the brain acts this way when it's 00:08:48.269 --> 00:08:50.669 structurally damaged or snarled of input, I guess 00:08:50.669 --> 00:08:52.590 it makes sense that introducing certain foreign 00:08:52.590 --> 00:08:55.350 toxins forces the exact same misfire. Which leads 00:08:55.350 --> 00:08:57.929 us directly into the exogenous triggers things 00:08:57.929 --> 00:09:00.080 introduced from the outside. Yeah. because the 00:09:00.080 --> 00:09:01.980 clinical literature highlights some highly unusual 00:09:01.980 --> 00:09:04.139 drug reactions that trip this exact same circuit. 00:09:04.580 --> 00:09:06.679 Right. The sources mention drugs like amantadine, 00:09:06.700 --> 00:09:08.580 which I know interacts with the dopamine system. 00:09:08.899 --> 00:09:10.639 But the footnote that really caught my attention 00:09:10.639 --> 00:09:13.899 references this 1954 British Medical Journal 00:09:13.899 --> 00:09:17.519 case study by someone named Todd. It documents 00:09:17.519 --> 00:09:19.940 a patient experiencing Lilliputian hallucinations 00:09:19.940 --> 00:09:22.980 due to trichloroethylene poisoning. Right. And 00:09:22.980 --> 00:09:25.600 trichloroethylene is an industrial solvent. It 00:09:25.600 --> 00:09:28.179 was historically used for degreasing metal parts 00:09:28.179 --> 00:09:31.950 and as a dry cleaning agent. So in 1954, a patient 00:09:31.950 --> 00:09:35.169 is literally poisoned by a harsh industrial chemical, 00:09:35.590 --> 00:09:38.429 experiences paranoid psychosis, and the result 00:09:38.429 --> 00:09:41.570 is LaRose elusive little people. Exactly. It 00:09:41.570 --> 00:09:43.769 perfectly reinforces your point. You can drop 00:09:43.769 --> 00:09:46.049 a hammer on a radio, or you can submerge it in 00:09:46.049 --> 00:09:48.529 water. The cause of the damage is totally different, 00:09:48.570 --> 00:09:50.649 but the static coming out of the speaker sounds 00:09:50.649 --> 00:09:52.750 exactly the same. What's fascinating here is 00:09:52.750 --> 00:09:55.529 that that's a perfect analogy. Whether the shock 00:09:55.529 --> 00:09:58.450 is endogenous, meaning from an internal medical 00:09:58.450 --> 00:10:01.419 condition, or exogenous like industrial solvent 00:10:01.419 --> 00:10:04.139 poisoning, the brain circuit board shorts out 00:10:04.139 --> 00:10:07.600 in this exact same highly specific pattern. But 00:10:07.600 --> 00:10:09.200 I mean, everything we've talked about so far, 00:10:09.399 --> 00:10:12.120 macular degeneration, brain stem strokes, industrial 00:10:12.120 --> 00:10:14.679 poisoning, that these are rare, chaotic, and 00:10:14.679 --> 00:10:17.039 largely unpredictable events. Yes, they are. 00:10:17.220 --> 00:10:20.059 You can't just schedule a trichloroethylene poisoning 00:10:20.059 --> 00:10:22.120 to see what happens. No, you certainly cannot. 00:10:22.399 --> 00:10:24.539 And this is where the sources take a massive 00:10:24.539 --> 00:10:26.700 left turn. Because while clinical conditions 00:10:26.700 --> 00:10:29.240 and random chemical poisonings are unpredictable. 00:10:29.879 --> 00:10:32.299 There is a natural trigger that seems to produce 00:10:32.299 --> 00:10:35.120 these visions with astonishing reliability. Oh, 00:10:35.120 --> 00:10:37.879 wow. Yeah, but to find it, we had to completely 00:10:37.879 --> 00:10:40.220 move out of the neurology clinic and into the 00:10:40.220 --> 00:10:42.600 jungle. Here is where it gets really interesting. 00:10:43.120 --> 00:10:46.080 We are diving into mycology, the study of fungi. 00:10:46.659 --> 00:10:49.279 The sources introduce a very specific mushroom 00:10:49.279 --> 00:10:53.320 found in Yunnan, China. Locally, it's known as 00:10:53.320 --> 00:10:56.919 the Xiao Ren Ren mushroom, which translates literally 00:10:56.919 --> 00:10:59.230 to little people mushroom. Scientifically, the 00:10:59.230 --> 00:11:01.929 text identifies one of these species as Lanmua 00:11:01.929 --> 00:11:04.269 asiatica, which is a type of bolete mushroom. 00:11:04.730 --> 00:11:07.529 And the anecdotal reports are just wild. They 00:11:07.529 --> 00:11:09.450 really are. There's a quote in our sources from 00:11:09.450 --> 00:11:11.950 a BBC article by Rachel Neuer, and the headline 00:11:11.950 --> 00:11:14.629 alone is just striking. It says, They saw them 00:11:14.629 --> 00:11:16.710 on their dishes when eating, the mushroom making 00:11:16.710 --> 00:11:19.470 people hallucinate dozens of tiny humans. It's 00:11:19.470 --> 00:11:22.230 an incredibly vivid image. You consume this specific 00:11:22.230 --> 00:11:25.309 bolete, and shortly after, you perceive an abundance 00:11:25.309 --> 00:11:28.029 of colorful, diminutive creatures interact. directly 00:11:28.029 --> 00:11:29.730 with your physical environment. Just running 00:11:29.730 --> 00:11:31.690 around your food. Right there on the dinner table. 00:11:31.889 --> 00:11:34.250 Now, I have to stop here and challenge this a 00:11:34.250 --> 00:11:36.370 bit. Okay, go for it. Because when I first read 00:11:36.370 --> 00:11:38.250 about the little people mushrooms of Yunnan, 00:11:38.629 --> 00:11:41.149 my immediate thought was about cultural priming. 00:11:41.450 --> 00:11:43.850 Explain what you mean by that for a second. Well... 00:11:43.629 --> 00:11:47.110 We know that expectation dictates a lot of psychedelic 00:11:47.110 --> 00:11:50.090 experiences, right? If you take a hallucinogen 00:11:50.090 --> 00:11:53.049 expecting a spiritual revelation, your brain 00:11:53.049 --> 00:11:55.629 usually provides one. That's true. Set and setting 00:11:55.629 --> 00:11:58.450 are very powerful. So are these people actually 00:11:58.450 --> 00:12:02.750 seeing fully rendered little humans? Or is the 00:12:02.750 --> 00:12:05.110 mushroom simply causing a visual distortion, 00:12:05.309 --> 00:12:08.250 like moving geometric blobs or fuzzy static? 00:12:08.490 --> 00:12:10.350 And because these individuals live in a culture 00:12:10.350 --> 00:12:13.009 with rich local folklore about nature's spirits, 00:12:13.000 --> 00:12:15.899 Their brains impose that cultural expectation 00:12:15.899 --> 00:12:18.519 onto the blobs, interpreting them as little people. 00:12:18.620 --> 00:12:22.620 It is a rigorous, highly logical question. And 00:12:22.620 --> 00:12:25.299 anthropologists and neuroscientists ask that 00:12:25.299 --> 00:12:28.039 exact question whenever localized psychedelic 00:12:28.039 --> 00:12:30.480 phenomena occur. Is it the chemical or is it 00:12:30.480 --> 00:12:33.200 the culture? Right. But the sources we have thoroughly 00:12:33.200 --> 00:12:35.080 dismantle the cultural priming factor. Really? 00:12:35.120 --> 00:12:37.700 How so? We have to look at the broader ethnographic 00:12:37.700 --> 00:12:41.820 context. The footnotes guide us to a 2022 presentation 00:12:41.820 --> 00:12:44.399 from the McKenna Academy of Natural Philosophy 00:12:44.399 --> 00:12:47.899 by Domnauer and Dentinger, along with a 2024 00:12:47.899 --> 00:12:50.490 paper by Samarini. And they didn't just look 00:12:50.490 --> 00:12:53.409 at China. They tracked independent ethnographic 00:12:53.409 --> 00:12:56.470 reports of psychoactive beliefs across vastly 00:12:56.470 --> 00:12:58.950 different geographies. Oh, right. They highlight 00:12:58.950 --> 00:13:01.289 reports emerging from Papua New Guinea as well. 00:13:01.529 --> 00:13:04.110 Exactly. In Papua New Guinea, the phenomenon 00:13:04.110 --> 00:13:06.769 is often referred to locally as mushroom madness. 00:13:07.350 --> 00:13:09.129 You have an entirely different culture separated 00:13:09.129 --> 00:13:12.090 by thousands of miles, oceans, and completely 00:13:12.090 --> 00:13:14.509 distinct linguistic and folkloric traditions. 00:13:14.649 --> 00:13:16.990 Yeah, totally disconnected. Yet when they consume 00:13:16.990 --> 00:13:19.570 similar types of psychoactive beliefs, the local 00:13:19.570 --> 00:13:22.610 inhabitants describe an identical, highly specific 00:13:22.610 --> 00:13:25.230 experience. Right, really? Yes, the sudden appearance 00:13:25.230 --> 00:13:28.090 of tiny, interactive, anthropomorphic entities. 00:13:28.309 --> 00:13:32.009 Wow. So it's not localized folklore, it is a 00:13:32.009 --> 00:13:34.789 geographically and culturally independent phenomenon. 00:13:35.230 --> 00:13:37.490 The chemical compound in the mushroom is directly 00:13:37.490 --> 00:13:39.929 interacting with that same evolutionary autofill 00:13:39.929 --> 00:13:42.090 circuit we talked about earlier, forcing the 00:13:42.090 --> 00:13:44.549 brain to render these tiny figures regardless 00:13:44.549 --> 00:13:47.129 of what culture the consumer belongs to. It is 00:13:47.129 --> 00:13:50.230 a chemical imperative, not a cultural suggestion. 00:13:50.610 --> 00:13:53.250 Now, it is worth noting that the sources acknowledge 00:13:53.250 --> 00:13:56.309 other more classical psychedelics can sometimes 00:13:56.309 --> 00:13:59.129 induce Lilliputian hallucinations too. Right. 00:13:59.289 --> 00:14:01.809 They reference serotonergic psychedelics like 00:14:01.809 --> 00:14:04.870 mescaline and DMT, as well as the famous red 00:14:04.870 --> 00:14:07.990 and white Amanita muscaria mushroom. But there 00:14:07.990 --> 00:14:10.330 is a massive difference in how those compounds 00:14:10.330 --> 00:14:12.610 operate compared to the beliefs, right? A profound 00:14:12.610 --> 00:14:15.409 difference. Compounds like DMT or mescaline are 00:14:15.409 --> 00:14:18.580 broad spectrum psychedelics. They bind to serotonin 00:14:18.580 --> 00:14:20.960 receptors and radically alter consciousness, 00:14:21.259 --> 00:14:23.179 emotion, and perception across the board. Like 00:14:23.179 --> 00:14:25.799 a total system override. Exactly. If you take 00:14:25.799 --> 00:14:28.919 GMT, you might see shifting geometric fractals, 00:14:29.240 --> 00:14:31.299 you might experience ego death, you might feel 00:14:31.299 --> 00:14:33.559 like you're speaking to the universe, or occasionally 00:14:33.559 --> 00:14:36.720 you might see a small entity. It's an unpredictable 00:14:36.720 --> 00:14:40.009 grab bag of perceptual alterations. Whereas with 00:14:40.009 --> 00:14:42.350 these bolete mushrooms in Yunnan and Papua New 00:14:42.350 --> 00:14:44.429 Guinea, the little people hallucination isn't 00:14:44.429 --> 00:14:47.009 just a random possibility in a sea of trippy 00:14:47.009 --> 00:14:50.070 effects. No, it's not. It seems to be the primary 00:14:50.070 --> 00:14:52.769 defining characteristic. It is the signature 00:14:52.769 --> 00:14:55.789 effect of the fungus, which leads to what is 00:14:55.789 --> 00:14:58.269 arguably the most baffling part of this entire 00:14:58.269 --> 00:15:01.049 deep dive. The mycological mystery. Yes. It's 00:15:01.049 --> 00:15:02.690 actually a bit staggering when you think about 00:15:02.690 --> 00:15:05.809 it. I read the summary of that 2022 McKenna Academy 00:15:05.809 --> 00:15:08.570 presentation and it states that despite more 00:15:08.460 --> 00:15:11.679 than half a century of rumors, and despite robust 00:15:11.679 --> 00:15:13.879 ethnographic reports from multiple continents, 00:15:14.320 --> 00:15:16.799 the active chemical constituent of these psychoactive 00:15:16.799 --> 00:15:20.019 beliefs remains entirely unknown. That is the 00:15:20.019 --> 00:15:23.019 reality. Yeah. As of today, no rigorous scientific 00:15:23.019 --> 00:15:25.799 studies have conclusively isolated or identified 00:15:25.799 --> 00:15:28.000 the molecule responsible for this effect. I just 00:15:28.000 --> 00:15:30.759 I can't believe that. It's 2026. We can sequence 00:15:30.759 --> 00:15:33.539 a genome in hours. We can detect gravitational 00:15:33.539 --> 00:15:35.720 waves from colliding black holes. I know. It 00:15:35.720 --> 00:15:38.799 sounds absurd. But we have a wild mushroom that 00:15:38.799 --> 00:15:42.240 acts as a reliable, highly specific chemical 00:15:42.240 --> 00:15:46.379 key to unlock a distinct perceptual door in the 00:15:46.379 --> 00:15:48.940 human brain. And we don't even know the shape 00:15:48.940 --> 00:15:52.100 of the key. How does modern science have a blind 00:15:52.100 --> 00:15:54.860 spot this large? It happens more often than we 00:15:54.860 --> 00:15:58.110 like to admit, honestly. Fungi are notoriously 00:15:58.110 --> 00:16:00.450 difficult to study. Their chemical compounds 00:16:00.450 --> 00:16:03.309 can be highly volatile and degrade quickly after 00:16:03.309 --> 00:16:05.149 harvesting. Oh, that makes sense. And they are 00:16:05.149 --> 00:16:07.450 very difficult to cultivate in laboratory settings. 00:16:07.850 --> 00:16:10.169 But more broadly, it exposes a certain arrogance 00:16:10.169 --> 00:16:12.330 in modern scientific assumptions. What do you 00:16:12.330 --> 00:16:14.409 mean? Well, we often assume that because we live 00:16:14.409 --> 00:16:17.230 in a technologically advanced age, the natural 00:16:17.230 --> 00:16:19.409 world has been fully cataloged and its chemical 00:16:19.409 --> 00:16:22.029 secrets have all been extracted, analyzed, and 00:16:22.029 --> 00:16:24.129 synthesized. We assume the dictionary is finished. 00:16:24.450 --> 00:16:26.899 Precisely. But this proves that the dictionary 00:16:26.899 --> 00:16:29.740 of nature is still missing entire chapters. Our 00:16:29.740 --> 00:16:32.340 neurochemistry is a staggering labyrinth of receptors, 00:16:32.679 --> 00:16:35.379 and the natural world still holds unstudied, 00:16:35.600 --> 00:16:37.980 profoundly powerful keys that fit perfectly into 00:16:37.980 --> 00:16:40.779 those locks. That is just incredible. Deep in 00:16:40.779 --> 00:16:43.379 the soils of Yunnan and Papua New Guinea, an 00:16:43.379 --> 00:16:46.519 organism evolved a molecule that expertly hacks 00:16:46.519 --> 00:16:49.799 the human visual cortex, and science hasn't yet 00:16:49.799 --> 00:16:52.399 managed to put it under a microscope. It completely 00:16:52.399 --> 00:16:54.620 reframes how you look at a walk in the woods. 00:16:54.860 --> 00:16:57.539 It really does. So synthesizing all of this from 00:16:57.539 --> 00:17:00.159 blind patients hallucinating to fill the void 00:17:00.159 --> 00:17:04.220 to industrial poisonings to mysterious wild mushrooms. 00:17:05.180 --> 00:17:07.519 What is the ultimate takeaway for you listening 00:17:07.519 --> 00:17:09.779 to this right now? I think the deepest takeaway 00:17:09.779 --> 00:17:13.619 is recognizing the sheer fragility of human perception. 00:17:13.960 --> 00:17:17.279 Right. We navigate our daily lives with a profound 00:17:17.279 --> 00:17:20.019 unspoken trust in our senses. Right. We trust 00:17:20.019 --> 00:17:21.740 that the room is empty if we don't see anyone. 00:17:22.119 --> 00:17:24.440 We trust that the table is solid, the scale of 00:17:24.440 --> 00:17:27.059 objects is absolute, and that our waking reality 00:17:27.059 --> 00:17:29.240 is an objective truth. We treat our vision like 00:17:29.240 --> 00:17:31.940 a camera feeding live footage to a monitor. But 00:17:31.940 --> 00:17:33.839 this deep dive proves that it's not a camera 00:17:33.839 --> 00:17:37.289 at all. Your reality is an active, ongoing, highly 00:17:37.289 --> 00:17:39.890 demanding construction project happening moment 00:17:39.890 --> 00:17:42.829 by moment in your visual cortex. It is a delicate 00:17:42.829 --> 00:17:45.789 consensus built on predictive algorithms and 00:17:45.789 --> 00:17:49.210 evolutionary hardwiring. And that consensus is 00:17:49.210 --> 00:17:52.450 incredibly fragile. A lesion in the brainstem, 00:17:53.009 --> 00:17:56.750 a drop in sensory input, or an unidentified molecule 00:17:56.750 --> 00:17:59.970 from a fungus can instantly hijack the rendering 00:17:59.970 --> 00:18:02.759 engine. It turns the physical geometry of your 00:18:02.759 --> 00:18:05.140 actual kitchen into a playground for multimodal 00:18:05.140 --> 00:18:07.440 fantasy creatures. Exactly. Which leaves us with 00:18:07.440 --> 00:18:10.000 a final thought to mull over. We've established 00:18:10.000 --> 00:18:12.339 today that the brain doesn't just invent these 00:18:12.339 --> 00:18:14.640 tiny humans out of nowhere, it defaults to them. 00:18:14.799 --> 00:18:17.279 Right. It is a specific channel the brain tunes 00:18:17.279 --> 00:18:21.059 into when the system misfires or when a mysterious 00:18:21.059 --> 00:18:23.700 mushroom forces the dial. It is an architectural 00:18:23.700 --> 00:18:26.279 blueprint that already exists inside you. Exactly. 00:18:26.539 --> 00:18:29.099 The capacity for these fairytale visions isn't 00:18:29.099 --> 00:18:31.839 external, it's built into your hardware. You 00:18:31.839 --> 00:18:34.259 are walking around right now carrying the precise 00:18:34.259 --> 00:18:36.480 neurological pathways required to generate an 00:18:36.480 --> 00:18:39.519 abundance of tiny, colorful, interactive people. 00:18:39.599 --> 00:18:41.920 Waiting to be activated. The software is installed, 00:18:42.279 --> 00:18:44.259 dormant, just waiting for the right chemical 00:18:44.259 --> 00:18:47.160 or systemic key to be turned. A beautiful, if 00:18:47.160 --> 00:18:49.759 slightly unsettling reality to carry with you. 00:18:50.019 --> 00:18:52.460 Keep that in mind the next time you look at that 00:18:52.460 --> 00:18:54.920 stable, predictable coffee mug. on your desk. 00:18:55.640 --> 00:18:57.700 Just remember how little it actually takes for 00:18:57.700 --> 00:19:00.279 that shared architecture to crumble and for Leroy's 00:19:00.279 --> 00:19:02.579 elusive little people to suddenly make an appearance. 00:19:03.220 --> 00:19:05.119 Thanks for joining us on this deep dive. Keep 00:19:05.119 --> 00:19:06.039 questioning what you see.