If there is intelligent life elsewhere in the universe, why haven’t we heard from the extraterrestrials yet? Producer David Kestenbaum explains The Fermi Paradox to host Ira Glass. The possibility that we are alone in the universe makes David sad.
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Guest host David Kestenbaum talks to producer Diane Wu about a list she keeps of things she means to know. Sweet potatoes vs. yams.
David’s story continues. He visits his old physics professor, who helps him figure out what to think.