#198 – Sara Walker: The Origin of Life on Earth and Alien Worlds
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About this episode
<p>Sara Walker is an astrobiologist and theoretical physicist interested in the origin of life. Please support this podcast by checking out our sponsors:<br />
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<p><b>EPISODE LINKS:</b><br />
Sara’s Twitter: <a href="https://twitter.com/Sara_Imari">https://twitter.com/Sara_Imari</a><br />
Sara’s Website: <a href="http://emergence.asu.edu/">http://emergence.asu.edu/</a></p>
<p><b>PODCAST INFO:</b><br />
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<p><b>SUPPORT & CONNECT:</b><br />
– Check out the sponsors above, it’s the best way to support this podcast<br />
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<p><b>OUTLINE:</b><br />
Here’s the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.<br />
(00:00) – Introduction<br />
(07:44) – Origin of life<br />
(15:38) – Did aliens seed life on Earth?<br />
(20:48) – What is life?<br />
(32:27) – Cellular automata<br />
(36:56) – The laws of physics may change with time<br />
(46:41) – Nobel Prize for the origin of life<br />
(52:01) – Is consciousness fundamental to the universe?<br />
(1:03:19) – Life is the most deterministic part of physics<br />
(1:05:54) – Free will<br />
(1:14:11) – How to detect alien life<br />
(1:28:48) – How many alien civilization are out there?<br />
(1:35:32) – Shadow biosphere<br />
(1:41:59) – UFO sightings<br />
(1:45:35) – Exponential population growth of AI lifeforms<br />
(1:52:42) – The role of death in life<br />
(1:56:45) – Advice for young people<br />
(2:02:31) – Meaning of life</p>