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Alien Debate: Sara Walker and Lee Cronin | Lex Fridman Podcast #279

Alien Debate: Sara Walker and Lee Cronin | Lex Fridman Podcast #279

23 segments available

Sara Walker is an astrobiologist and theoretical physicist. Lee Cronin is a chemist. This is a conversation and debate about alien life and alien civilizations. Please support this podcast by checking out our sponsors: - Uncruise: https://uncruise.com/pages/lex - Linode: https://linode.com/lex to get $100 free credit - ExpressVPN: https://expressvpn.com/lexpod and use code LexPod to get 3 months free - ROKA: https://roka.com/ and use code LEX to get 20% off your first order - Athletic Greens: https://athleticgreens.com/lex and use code LEX to get 1 month of fish oil EPISODE LINKS: Sara's Twitter: https://twitter.com/Sara_Imari Sara's Website: http://emergence.asu.edu Lee's Twitter: https://twitter.com/leecronin Lee's Website: https://www.chem.gla.ac.uk/cronin Chemify's Website: https://chemify.io PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ Full episodes playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4 Clips playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOeciFP3CBCIEElOJeitOr41 OUTLINE: 0:00 - Introduction 2:08 - Aliens 16:14 - What is life? 23:56 - Assembly theory 46:24 - Math 58:06 - Communication with aliens 1:22:59 - Evolution of the universe 1:32:17 - Creating alien life 1:39:50 - Origin of life 1:46:50 - Before the Big Bang 1:53:43 - God 2:04:00 - Goal-directed behavior 2:21:58 - Time 2:30:15 - Free will and imagination 2:45:27 - UFO sightings 2:50:27 - Alien life forms debate 3:05:35 - Robots 3:14:50 - Love and emotion 3:33:16 - Beauty in science 3:43:27 - Random questions 3:52:51 - Advice for young people 3:56:09 - Life on Earth 4:00:33 - Memory SOCIAL: - Twitter: https://twitter.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - Medium: https://medium.com/@lexfridman - Reddit: https://reddit.com/r/lexfridman - Support on Patreon: https://www.patreon.com/lexfridman

Segments Timeline

1
0:00 - 2:08
2:08 duration353 words

Introduction

"i don't know what it's like to be an alien i would like to know two alien civilizations coexisting on a planet what's that look like exactly when you see them and they see you you're assuming they hav..."

2
2:08 - 16:15
14:06 duration2654 words

Aliens

"first of all welcome back sarah welcome back lee you guys i'm a huge fan of yours you're incredible people i should say thank you to sarah for wearing uh really awesome boots we'll probably overlay a ..."

3
16:15 - 23:57
7:42 duration1383 words

What is life?

"talk about life what is life what is non-life what is the line between life and non-life and maybe at any point we can pull in ideas of assembly theory like how do we start to try to define life and f..."

4
23:57 - 46:27
22:30 duration4297 words

Assembly theory

"and and start at the beginning what is assembly theory lee send me some slides there's a there's a big sexy paper coming out probably maybe i don't know we've almost finished it um almost almost that'..."

5
46:27 - 58:06
11:38 duration2126 words

Math

"exactly it's a uh a nice simplification at this simple description of what so we have a computer scientist a physicist in the chemist here why i can do a bar i think the chemist is going to define mat..."

6
58:06 - 1:23:01
24:55 duration4897 words

Communication with aliens

"you mentioned that there's no way to communicate with aliens until there's overlap in the causal craft communication includes being able to see them and like what are we this is the question is um is ..."

7
1:23:01 - 1:32:19
9:17 duration1610 words

Evolution of the universe

"uh different like local pockets of the universe start remembering stuff how does memory uh emerge exactly so at the origin of the universe i was very forgetful that's when the physicists were happiest..."

8
1:32:19 - 1:39:50
7:31 duration1386 words

Creating alien life

"cascading thing so what if that's the reason we're lucky is that we got to have a rare cascading of um like accelerating cascading effect in terms of the complexity of things so like maybe most of the..."

9
1:39:50 - 1:46:50
7:00 duration1316 words

Origin of life

"isn't it possible once you figure out the origin of life that that's not going to solve um that's not actually going to solve the question of what is life like is isn't it because you're kind of putti..."

10
1:46:50 - 1:53:43
6:52 duration1269 words

Before the Big Bang

"we talked about the early days of the universe when there was just stuff and no memory not even causality i think lee at least implied the causality's immersion somehow we could discuss this what happ..."

11
1:53:43 - 2:04:00
10:17 duration1799 words

God

"is there room for god in assembly theory who's god i like arguments for a necessary being better than god well i think i said it earlier like something that has to exist oh so you like i mean you like..."

12
2:04:00 - 2:22:00
17:59 duration3352 words

Goal-directed behavior

"you mentioned offline the assembledtron assemblytron assemblytron yep uh what what's an assemblytron these are the there's an early idea of something you're thinking about um so sarah's team uh well i..."

13
2:22:00 - 2:30:16
8:15 duration1616 words

Time

"few things i want to ask but we brought up time quite a bit you guys tweet about time quite a bit uh what is time in all this we kind of mentioned it a bunch um is it not important at all in terms of ..."

14
2:30:16 - 2:45:29
15:13 duration2797 words

Free will and imagination

"only had no pages and they have all had one page another page another page whereas a physicist will now say all the pages exist and we could in principle access them i'm saying that is fundamentally i..."

15
2:45:29 - 2:50:27
4:58 duration887 words

UFO sightings

"about alien sightings so there's been quite a bit of ufo sightings and all that kind of stuff what do you think would be the first time when humans cite aliens see aliens in a sort of unquestionable w..."

16
2:50:27 - 3:05:35
15:08 duration2776 words

Alien life forms debate

"what would you say is between the two of you is the biggest disagreement about aliens alien life out there is it from the basic framework of thinking about what is life to maybe what aliens look like ..."

17
3:05:35 - 3:14:50
9:14 duration1703 words

Robots

"what about robots so is it possible to engineer see because you're really talking about like engineering life at the chemistry level but do you think it's possible to engineer life at the like humanoi..."

18
3:14:50 - 3:33:16
18:25 duration3448 words

Love and emotion

"isn't that what love is being fooled like what why why are you not giving much value to the emotional connection with objects with with robots with humans emotion is that thing which happens when you'..."

19
3:33:16 - 3:43:28
10:12 duration1835 words

Beauty in science

"oh beauty i wanted to mention this because you also tweeted i think this was sarah no it might have been lee i don't remember but it was a survey published in nature showing that scientists uh find ye..."

20
3:43:28 - 3:52:51
9:22 duration1831 words

Random questions

"questions and i demand relatively short answers uh lee what's the scariest thing you've ever done okay yeah or what's a scary thing that pops to mind giving lecture giving giving seminars in front of ..."

21
3:52:51 - 3:56:09
3:17 duration619 words

Advice for young people

"fascinating minds and not i would say uh non-standard in the best possible way is there advice you can give to young folks how to be non-standard how to stand out novelty how to generate novelty that'..."

22
3:56:09 - 4:00:33
4:24 duration825 words

Life on Earth

"if you were abducted by aliens sarah excellent i'm waiting [Laughter] there on a spaceship there and then they somehow figured out the language you speak um and ask you what are what are you what is w..."

23
4:00:33 - 4:05:24
4:51 duration807 words

Memory

"rather lose all of your old memories or never be able to make new ones i would have to um lose all my old memories again it's the novelty um what about you sarah i'm not saying because i don't think l..."