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#355 – David Kipping: Alien Civilizations and Habitable Worlds
Lex Fridman Podcast
Are We Looking for Life?
When we look for life, it's hard to define even what life is, but we can maybe do a better job in defining the sorts of things that life does. And that provides some aspects to some avenue for looking for them. Any classically, conventionally, I think we thought the way to look for life was to look for oxygen. Oxygen is a byproduct of a synthesis on this planet. We didn't always have it. If you took away all the plant life on the Earth, the oxygen wouldn't just hang around here as a highly reactive molecule.
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