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2:51:58EN
Lex Fridman· Jun 13, 2024Podcast · 2 speakersSara Walker: Life Is Huge in Time, Not in SpaceGuest Sara Walker · Host Lex FridmanThe astrobiologist tells Lex Fridman why textbook definitions of life fail, how assembly theory measures complexity, and why aliens might disappear into their own causal structure.
3:19:21ENLex Fridman· Dec 9, 2023Podcast · 2 speakersComplexity without copies is just randomness: Lee Cronin on assembly theoryGuest Lee Cronin · Host Lex FridmanThe Glasgow chemist walks Lex Fridman through his controversial Nature paper, a proposed life meter for other worlds, and the claim that the universe is too big to contain its own future.
2:40:18ENLex Fridman· Dec 29, 2022Podcast · 2 speakersEvery Living Cell Runs the Same Translation MachineGuest Betül Kaçar · Host Lex FridmanAstrobiologist Betül Kaçar tells Lex Fridman how the tree of life is drawn backward, why nitrogen was fixed only once, and why the genetic code is an alphabet with room for typos.
3:43:01ENLex Fridman· Sep 7, 2022Podcast · 2 speakersPut Hydrogen and CO2 in a Tube. Thermodynamics Wants Cells. Nothing Happens.Guest Nick Lane · Host Lex FridmanBiochemist Nick Lane talks Lex Fridman through hydrothermal vents, mitochondria, sex, consciousness, and why bacteria should be common while civilizations are not.
4:05:22ENLex Fridman· Apr 24, 2022PodcastIf We Cannot Say What Life Is, We Cannot Recognize AliensHost Lex FridmanAstrobiologist Sara Walker and chemist Lee Cronin argue that the hunt for alien life is really a hunt for a physics of memory, objects, and time.
4:05:51ENLex Fridman· Mar 11, 2022Podcast · 2 speakersLife is the universe developing a memoryGuest Lee Cronin · Host Lex FridmanChemist Lee Cronin tells Lex Fridman why life looks inevitable, how assembly theory could detect it on any world, and why silicon may never hold enough states for consciousness.
1:59:28ENLex Fridman· Jul 9, 2021Podcast · 2 speakersSara Walker says “what is life?” is the wrong questionGuest Sara Walker · Host Lex FridmanThe astrobiologist and theoretical physicist tells Lex Fridman that origin-of-life science is stuck on molecules, and that causation, assembly, and planetary-scale information are closer to the real problem.
2:17:42ENLex Fridman· Jan 11, 2021Podcast · 2 speakersThe building block of life is a bead on a string, not the whole proteinGuest Dmitry Korkin · Host Lex FridmanDmitry Korkin tells Lex Fridman why protein domains, a triangular spike, and a conservative viral shell matter more than the AlphaFold headline, and why a Nobel laureate once answered a midnight forum post.
2:10:53ENLex Fridman· Sep 12, 2020Podcast · 2 speakersAll Your DNA Would Reach Jupiter a Hundred Times OverGuest Manolis Kellis · Host Lex FridmanManolis Kellis talks Lex Fridman through the epigenome, Neanderthals, Europa, midlife, and why "are you happy?" is the wrong question.