
Why haven't we found intelligent life yet?
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There is a high statistical probability of extraterrestrial intelligent life, but also a total lack of evidence for it. That's what D. Mark Yeomans explores in his new non-fiction science book: Fermi's Paradox and How Intelligent Life Arose on Earth. He joins the show to take listeners on a journey from the formation of the Earth to the evolution of humans and the long chain of events that might mean intelligent life is possible.

