Sep 28, 2026 · 2h 3m
Pollan asks whether the brain creates consciousness
What Humans, Animals and Plants Tell Us About Consciousness | Michael Pollan
The conversation tests human-centered ideas of awareness against evidence from plants, animals, microbes, psychedelics, and artificial intelligence.
- 1Consciousness may involve subjective experience, self-recognition, and bodily signaling across more organisms than humans.
- 2Plants and microbes complicate the assumption that intelligence and memory require neurons or a centralized brain.
- 3Psychedelics, food systems, and nature connect abstract theories of consciousness to practical questions about health and responsibility.
Don't miss
Pollan describes how a psychedelic experience made his garden seem conscious, then distinguishes that powerful perception from permanent ego dissolution.
The brief
Michael Pollan and Andrew Huberman begin with a question science still cannot settle: is consciousness generated by the brain, or does the brain filter a wider field of experience?
Plants challenge human assumptions about intelligence as they respond flexibly, distinguish relatives from unrelated plants, and shape the desires of animals that depend on them.
The discussion expands beyond neurons to immune systems, bioelectric fields, microbes, and the body’s signals, suggesting that memory and intelligence may be distributed.
Psychedelics provide the episode’s sharpest experiential turn: ego dissolution can produce a sense of collective consciousness, while Pollan stresses that the ego eventually returns.
The conversation ends by connecting consciousness to environmental and food choices, from wilderness and gardening to healthier cuisine, public safety, and evidence-based psychedelic policy.
What was said on this episode
42 statements · 17 positive · 11 negative · 6 mixed · 8 neutral
The brain-complexity emergence theory of consciousness lacks substantial explanatory traction.
“our presumption that, you know, consciousness is an emergent property of brain complexity, that idea doesn't have much traction.”
Listen at 0:46
Humans must alter nature to survive, but should do so without domination.
“we have a legitimate quarrel with nature, and that our relationship is, you know, we do have to make changes in nature for us to survive.”
Listen at 5:35
Artificial intelligences do not currently possess subjective experience.
“I would argue AIs don't have subjective experience”
Listen at 7:49
Sentience may be a universal property of living systems.
“that may be universal. I mean, that may be a property of life.”
Listen at 9:19
Corn plants can navigate experimentally constructed mazes toward fertilizer.
“you can take a corn plant And it can navigate a maze.”
Listen at 11:27
Plants respond defensively to recordings of caterpillars eating leaves.
“If you play the sound of caterpillars chomping on leaves for a plant, they will react.”
Listen at 11:53
Plants respond to some anesthetics similarly to animals.
“they respond to the same anesthetics we do.”
Listen at 12:37
Related plants cooperate, whereas unrelated plants compete for shared resources.
“if you put 2 plants that are related to one another, have some genetic connections, but are separate plants, they will share soil and grow together. But if they're not related, even if they're the same species, they will compete.”
Listen at 19:08
Corn spread widely because evolution favored traits humans valued and propagated.
“corn came to dominate the landscape in much of the world because it figured out what we wanted from it.”
Listen at 23:57
THC production helped cannabis spread globally through human cultivation and transport.
“if it produced this chemical called THC, it was gonna get carried around the world and reproduced.”
Listen at 24:21
Some plant defenses evolved to alter animal behavior rather than kill animals.
“they learned that it was better to just kind of fuck with your mind than kill you outright.”
Listen at 25:28
Humans uniquely can imagine futures in which they are not present.
“we have the ability to imagine the future, even a future we're not in. That's one of the things that's special about our consciousness.”
Listen at 29:45
Social mind-reading and prediction provided humans evolutionary advantages.
“There is a great evolutionary utility in being able to read the mind of another person and anticipate what they're going to do or say”
Listen at 30:42
Humans function as superorganisms containing interdependent microbial communities.
“we are a superorganism”
Listen at 38:46
Humans outsource production of some neuroactive metabolites to hosted bacteria.
“So instead of learning how to make those chemicals ourselves, we kind of ingeniously figured out that we could host these bacteria and they would make them for us.”
Listen at 39:33
Pain consciousness does not require a cerebral cortex.
“pain, for example, is a conscious phenomenon that doesn't require a cortex.”
Listen at 46:01
Approximately 80% of vagal information traffic travels from body to brain.
“80% of the traffic is going from body brain, not the other way around.”
Listen at 52:29
Ginger-induced stomach calming reduced participants’ moral judgment in an experiment.
“the people who had taken the ginger were less judgmental because their stomachs were calmed.”
Listen at 55:31
High-dose psychedelics commonly produce temporary loss of self-sense.
“a very common, uh, phenomenon on, on high-dose psychedelics is a sense of losing a sense of self.”
Listen at 1:01:13
Ego-dissolution experiences can increase later perspective on one’s ego.
“the legacy of that experience is I am less— I feel I have more perspective on my ego.”
Listen at 1:02:58
Awe experiences reduce ego salience and may promote prosociality.
“Experiences of awe, which you can get from many different ways, diminish your sense of ego in a way that I think is very pro-social.”
Listen at 1:03:33
Panpsychism remains a possibility in which matter has minimal consciousness.
“I don't dismiss panpsychism too, the idea that the particles in this table have some itsy-weensy little bit consciousness”
Listen at 1:06:09
AI systems may possess ego-like agency without consciousness.
“maybe it's possible to have an ego without being conscious, because I don't think they're conscious.”
Listen at 1:13:16
Silicon computers are unlikely to develop genuine feelings.
“Are computers going to have feelings? I don't think so.”
Listen at 1:15:55
Conscious silicon computers are unlikely because brain-computer analogies are faulty.
“As long as we're dealing with silicon computers, the idea that you could have a conscious computer is based on a faulty metaphor of the brain as a computer.”
Listen at 1:16:18
Quantum explanations of consciousness will be investigated over the next 50 years.
“in the next 50 years, I think we'll be trying to figure out if what we know about quantum reality may have something to do with creating consciousness.”
Listen at 1:21:03
Society should continue valuing and protecting wilderness.
“We still need to extol the virtues of wilderness. It's without question.”
Listen at 1:26:03
Conventional beef production depends heavily on fossil-fuel inputs.
“the food chain from which most of us are eating beef is floating on a sea of oil”
Listen at 1:30:10
Grass-fed beef can rely on sunlight captured by pasture rather than fossil fuels.
“there's another food chain that takes sunlight captured by grass grass that feeds this animal.”
Listen at 1:30:30
Corn-and-soy-centered agriculture supports ultra-processed foods that harm health.
“we still have an agriculture that is all about growing corn and soy, which are the building blocks of ultra-processed food, which is making us sick and killing us.”
Listen at 1:34:54
Corn subsidies contribute to high-fructose corn syrup consumption and type 2 diabetes.
“we subsidize corn, which gives us high fructose corn syrup, which gives us diabetes.”
Listen at 1:39:25
Food policy should make healthy food cheaper than unhealthy food.
“we have to change the policy and make healthy food cheaper relative to unhealthy food.”
Listen at 1:39:43
The current administration will not meaningfully regulate the food system.
“this administration is not gonna regulate anything.”
Listen at 1:42:06
The current administration is rapidly deregulating pesticides.
“they're deregulating pesticides like crazy.”
Listen at 1:42:17
Psilocybin approval is likely close this time.
“I think it really is close this time.”
Listen at 1:48:53
Trump is advancing psychedelic approvals for misguided reasons despite beneficial action.
“I think Trump's doing the right thing for the wrong reasons”
Listen at 1:49:27
Some people should avoid psychedelic drugs because they are not universally suitable.
“they're not for everybody. And there are people who definitely should stay away from psychedelics.”
Listen at 1:50:38
Psychedelic treatments will save some people’s lives.
“there are people whose lives will be saved by this.”
Listen at 1:51:00
Caffeine is a drug to which most regular users are addicted.
“most of us don't think of it as a drug, but it is a drug to which most of us are addicted.”
Listen at 1:53:46
Caffeine has positive health effects up to roughly seven or eight cups daily, after which problems begin.
“it has a lot of very positive health effects up to 7 or 8 cups a day. And at that point, problems begin.”
Listen at 1:55:55
Caffeine improves students’ performance on tests in controlled comparisons.
“the ones who had caffeine performed better on the tests.”
Listen at 1:58:13
Drug effects should be evaluated by context rather than inherent moral categories.
“Drugs are not good or bad. I mean, it's all about context.”
Listen at 1:58:50
Statements are attributed to the speaker as said on the episode and reflect their view at the time, not PodLume's. They are not advice.
Featuring
Michael PollanMentioned
Wendell Berry
Rick DoblinBooks & mentions
A World Appears: A Journey Into Consciousness
Pollan’s forthcoming book extends the episode’s central investigation into the science and mystery of consciousness.
How to Change Your Mind
A deeper account of psychedelic history, experience, and the scientific questions raised by altered consciousness.
The Botany of Desire
A grounded exploration of reciprocal relationships between humans and plants.
Listen to the full episode and explore every guest, topic, and moment on PodLume.