Lex Fridman Podcast
#455 – Adam Frank: Alien Civilizations and the Search for Extraterrestrial Life
Adam Frank
Even a large civilization, even if it was a large. A hundred million years ago. And it lasted 10,000 years, fossil record's not going to have it. Yeah, yeah. The fossil record is too sparse, right? Most things don't fossilize. And 10,000 years is a blink in the eye of geological time.
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