Lex Fridman Podcast
#455 – Adam Frank: Alien Civilizations and the Search for Extraterrestrial Life
Adam Frank
And so we could actually track the expansion wave across the galaxy, have one IABiogenesis event, and then watch the whole galaxy get colonized or settled. And it is absolutely true that that wave crosses, you know, Hart was right, Fermi was right, that wave crosses very quickly. But civilizations don't last forever, right? So one question is, when did they visit?
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