#433 – Sara Walker: Physics of Life, Time, Complexity, and Aliens

Sara Walker is an astrobiologist and theoretical physicist. She is the author of a new book titled "Life as No One Knows It: The Physics of Life's Emergence". Please support this podcast by checking out our sponsors:
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Transcript: https://lexfridman.com/sara-walker-3-transcript

EPISODE LINKS:
Sara's Book - Life as No One Knows It: https://amzn.to/3wVmOe1
Sara's X: https://x.com/Sara_Imari
Sara's Instagram: https://instagram.com/alien_matter

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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
(10:40) - Definition of life
(31:18) - Time and space
(42:00) - Technosphere
(46:25) - Theory of everything
(55:06) - Origin of life
(1:16:44) - Assembly theory
(1:32:58) - Aliens
(1:44:48) - Great Perceptual Filter
(1:48:45) - Fashion
(1:52:47) - Beauty
(1:59:08) - Language
(2:05:50) - Computation
(2:15:37) - Consciousness
(2:24:28) - Artificial life
(2:48:21) - Free will
(2:55:05) - Why anything exists