#198 – Sara Walker: The Origin of Life on Earth and Alien Worlds
发布时间 2021-07-09 22:14:56 来源
摘要
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
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- 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
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