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3:18:09EN
Lex Fridman· Nov 30, 2025Podcast · 2 speakersA Thing Is Alive When Its Goals Outrun Its PartsGuest Michael Levin · Host Lex FridmanTufts biologist Michael Levin tells Lex Fridman that intelligence is a spectrum of persuadability, that even a bubble sort hosts unexpected goals, and that the brain is a thin client to a space physics does not own.
2:48:12ENLex Fridman· Apr 13, 2023Podcast · 2 speakersThe Asteroid We Are Building OurselvesGuest Max Tegmark · Host Lex FridmanPhysicist Max Tegmark tells Lex Fridman why a six-month pause on models larger than GPT-4 is not a ban on AI, but a chance to stop a suicide race.
3:00:21ENLex Fridman· Oct 1, 2022Podcast · 2 speakersCut Off a Planarian's Head. The New Brain Still RemembersGuest Michael Levin · Host Lex FridmanMichael Levin argues that DNA only builds hardware, bioelectric networks store body plans, and frog skin cells can become robots that evolution never designed.
1:36:11ENLex Fridman· Sep 17, 2022Podcast · 2 speakers2029 Passes the Turing Test. 2045 Is Still the SingularityGuest Ray Kurzweil · Host Lex FridmanRay Kurzweil tells Lex Fridman why his dates have not moved, how to invent in the present tense, and why the replica of his father answered the meaning of life with one word: love.
3:11:01ENLex Fridman· Sep 4, 2022Podcast · 2 speakersWhere Do You Go for Wisdom? John Vervaeke on the Meaning CrisisGuest John Vervaeke · Host Lex FridmanA University of Toronto cognitive scientist argues that meaning is a real relationship between self and world, and that modern life has lost the practices that used to repair it.
3:19:52ENLex Fridman· Aug 16, 2022Podcast · 2 speakersDuncan Trussell Would Live This Life Again, Dark Parts IncludedGuest Duncan Trussell · Host Lex FridmanA comedian and Lex Fridman talk through eternal recurrence, machine sentience, cancer, war, depression, and the love that makes the loop worth running.
2:44:16ENLex Fridman· Jul 14, 2022Podcast · 2 speakersIQ at Eleven Predicted Survival at Eighty. Richard Haier on the Finding Psychology Tried to BuryGuest Richard Haier · Host Lex FridmanLex Fridman talks with psychologist Richard Haier about the g factor, The Bell Curve, group differences, and why intelligence research became the most radioactive topic in the field.
3:16:16ENLex Fridman· Jun 12, 2022Podcast · 2 speakersEvolution Never Designed You to See the TruthGuest Donald Hoffman · Host Lex FridmanCognitive scientist Donald Hoffman tells Lex Fridman why natural selection hides reality behind a user interface, and why spacetime itself may be just another icon on the desktop.
1:42:58ENLex Fridman· Feb 6, 2022Podcast · 2 speakersDon't Talk Conclusions. Talk Data.Guest Garry Nolan · Host Lex FridmanA Stanford immunologist sat through the brain scans of people who said they had met UFOs—and treats the rest of the subject the same way.
2:46:31ENLex Fridman· Feb 3, 2022Podcast · 2 speakersThe Official Scientific Worldview Is Incompatible With ConsciousnessGuest Philip Goff · Host Lex FridmanDurham philosopher Philip Goff tells Lex Fridman why panpsychism — the view that consciousness is fundamental and ubiquitous — is the least-bad theory of mind.
1:45:45ENLex Fridman· Oct 20, 2021Podcast · 2 speakersA Blink of Ordered Particles: Brian Greene on Entropy, Meaning, and DeathGuest Brian Greene · Host Lex FridmanThe Columbia physicist talks with Lex Fridman about heat death, consciousness, string theory, the Big Bang, aliens, Mars, and the kind of freedom that survives without free will.
2:51:33ENLex Fridman· Aug 29, 2021Podcast · 2 speakersThe Self Is a GPT Prompt: Wojciech Zaremba on Consciousness, Codex, and Fermi's SilenceGuest Wojciech Zaremba · Host Lex FridmanOpenAI co-founder Wojciech Zaremba tells Lex Fridman he thinks we might be alone in the universe — and that GPT-3, Codex, and a one-handed robot already hint at how intelligence is built.
3:12:21ENLex Fridman· Aug 21, 2021Podcast · 2 speakersThe Ape's Brain Runs a Dream: Joscha Bach on Consciousness, Freedom, and MeaningGuest Joscha Bach · Host Lex FridmanA long conversation about the self as a control model, the dream world generated by the brain, free will, language models, evil, love, and how to live without a fixed self.
2:31:30ENLex Fridman· May 24, 2021Podcast · 2 speakersThe Brain Is the Last Unengineered System in SocietyGuest Bryan Johnson · Host Lex FridmanBryan Johnson demos Kernel Flow on Lex Fridman, then argues that cognition is society's largest unmeasured input and that numbers, not vibes, should run mental health, diet, and the next wave of brain interfaces.
3:17:20ENLex Fridman· May 20, 2021Podcast · 2 speakersThe illusion of free will is itself an illusionGuest Sam Harris · Host Lex FridmanSam Harris talks with Lex Fridman about consciousness, psychedelics, AI, UFOs, jiu-jitsu, and why meaning appears only when attention stops looking elsewhere.
1:56:31ENLex Fridman· Oct 12, 2020Podcast · 2 speakersA Blank Wall Is Not More Conscious Than a PersonGuest Scott Aaronson · Host Lex FridmanScott Aaronson walks Lex Fridman through integrated information theory, Penrose’s uncomputable mind, GPT-3, P versus NP, and why silent support for open discourse has to get louder.
1:09:14ENLex Fridman· Jul 8, 2020Podcast · 2 speakersSuffering Is a State You'd Rather Not Be In — Peter Singer on Animals, Robots, and UsGuest Peter Singer · Host Lex FridmanOn Lex Fridman's podcast, the Princeton bioethicist defines suffering, extends it from factory farms to possible machine minds, and still puts extreme poverty first.
3:00:18ENLex Fridman· Jun 13, 2020Podcast · 2 speakersOnly a Simulation Can Be ConsciousGuest Joscha Bach · Host Lex FridmanJoscha Bach tells Lex Fridman why a neuron cannot feel anything, why existence is the default, and why this dying world is still the best level of the game.
1:07:21ENLex Fridman· Apr 9, 2020Podcast · 2 speakersComplex Things Have to GrowGuest Richard Dawkins · Host Lex FridmanRichard Dawkins talks with Lex Fridman about alien minds, memes, morality, and why even a simulated world would still need Darwin.
1:27:57ENLex Fridman· Mar 31, 2020Podcast · 2 speakersThe Brain's Best Computer Has No Inner LifeGuest Roger Penrose · Host Lex FridmanRoger Penrose tells Lex Fridman why HAL raises a moral problem the field will not name, why the cerebellum wrecks the computational theory of mind, and why gravity, Gödel, and an infinite cosmos all hang on the same kind of understanding.
12:42ENLex Fridman· Mar 28, 2020Podcast · 2 speakersThe Experience Machine: What Our Refusal to Plug In Says About What We ValueGuest Nick Bostrom · Host Lex FridmanNick Bostrom unpacks Robert Nozick's experience machine, the status quo effect behind our answers, and whether a simulation convincing enough to feel real would have to contain real minds.
1:56:38ENLex Fridman· Mar 25, 2020Podcast · 2 speakersBostrom Will Not Pick a Fork: The Simulation Argument Is a Disjunction, Not a BetGuest Nick Bostrom · Host Lex FridmanNick Bostrom walks Lex Fridman through the simulation argument, anthropic reasoning, and why superintelligence talk should be split into near-term and long-term conversations.
1:11:09ENLex Fridman· Mar 3, 2020Podcast · 2 speakersAva smiled when nobody was watchingGuest Alex Garland · Host Lex FridmanAlex Garland talks with Lex Fridman about Ex Machina, Annihilation, Devs, and how you tell whether anything is really in there.
1:38:49ENLex Fridman· Jan 29, 2020Podcast · 2 speakersEven a simulation would still be realGuest David Chalmers · Host Lex FridmanDavid Chalmers tells Lex Fridman why a simulated world would still count as reality, and why the hard problem of consciousness still will not go away.Load moreShowing 24 of 34