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#198 – Sara Walker: The Origin of Life on Earth and Alien Worlds

#198 – Sara Walker: The Origin of Life on Earth and Alien Worlds

Lex Fridman Podcast vor 5 Jahren

Sara Walker is an astrobiologist and theoretical physicist interested in the origin of life. Please support this podcast by checking out our sponsors: - Athletic Greens: https://athleticgreens.com/lex and use code LEX to get 1 month of fish oil

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2:05:18

Sara Walker is an astrobiologist and theoretical physicist
interested in the origin of life. Please support this podcast by
checking out our sponsors:

– Athletic Greens: https://athleticgreens.com/lex and use
code LEX to get 1 month of fish oil

– NetSuite: http://netsuite.com/lex to get free product
tour

– Blinkist: https://blinkist.com/lex and use code LEX to
get 25% off premium

– Magic Spoon: https://magicspoon.com/lex and use code LEX
to get $5 off

EPISODE LINKS:

Sara’s Twitter: https://twitter.com/Sara_Imari

Sara’s Website: http://emergence.asu.edu/

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/

YouTube Full Episodes: https://youtube.com/lexfridman

YouTube Clips: https://youtube.com/lexclips

SUPPORT & CONNECT:

– Check out the sponsors above, it’s the best way to support this
podcast

– Support on Patreon: https://www.patreon.com/lexfridman

– Twitter: https://twitter.com/lexfridman

– Instagram: https://www.instagram.com/lexfridman

– LinkedIn: https://www.linkedin.com/in/lexfridman

– Facebook: https://www.facebook.com/lexfridman

– Medium: https://medium.com/@lexfridman

OUTLINE:

Here’s the timestamps for the episode. On some podcast players
you should be able to click the timestamp to jump to that
time.

(00:00) – Introduction

(07:44) – Origin of life

(15:38) – Did aliens seed life on Earth?

(20:48) – What is life?

(32:27) – Cellular automata

(36:56) – The laws of physics may change with time

(46:41) – Nobel Prize for the origin of life

(52:01) – Is consciousness fundamental to the universe?

(1:03:19) – Life is the most deterministic part of physics

(1:05:54) – Free will

(1:14:11) – How to detect alien life

(1:28:48) – How many alien civilization are out there?

(1:35:32) – Shadow biosphere

(1:41:59) – UFO sightings

(1:45:35) – Exponential population growth of AI lifeforms

(1:52:42) – The role of death in life

(1:56:45) – Advice for young people

(2:02:31) – Meaning of life