Lex Fridman Podcast
#455 – Adam Frank: Alien Civilizations and the Search for Extraterrestrial Life
Adam Frank
So the, he said, look, the first thing hurdle in terms of energy or threshold that a civilization will go through is using all the starlight that falls onto a planet. He called that a type one civilization. In whatever way you're doing it, some large fraction of the starlight that falls on your planet, you're using for your own ends.
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