Jared Diamond, author of a suite of massive, bestselling books about the precarious state of our civilization (including the Pulitzer-winning Guns, Germs, and Steel), calls himself "cautiously optimistic" about the future of humanity. What does that mean? "My estimate of our chances that we will master our problems and have a happy future, I would say the chances are 51 percent," Diamond explains on this week’s episode. "And the chances of a bad ending are only 49 percent," he adds.
Diamond didn...
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