Should We Be Worried About the Lack of Aliens?

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Fermi’s Paradox brings up a troubling issue: if even a small fraction of stars have planets with intelligent life, much of it should be more advanced than us–so why have aliens never come by to say hello? Do civilizations all blow themselves up? Are we next?  Josh Jennings joins Heaton to suss out the paradox, and go over possible explanations of alien absence.