Lex Fridman Podcast
#455 – Adam Frank: Alien Civilizations and the Search for Extraterrestrial Life
Adam Frank
Well, I'm glad you asked that question because that paper that David and Sarah and I wrote, what we were arguing was is that over the history of a planet, right, when life first forms, you know, 3.8 billion years ago, it's kind of thin on the ground, right? You've got the first species, you know, these are all microbes.
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