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Psychologist Philip Tetlock’s warning that “the average expert is roughly as accurate as a dart-throwing chimpanzee” has assumed Talmudic weight as the world awaits the results of next month’s U.S. presidential election. Donald Trump’s victory in the 2016 vote — after elections guru Nate Silver said he had “only” a 29% chance of winning the electoral college — was widely viewed as a stake through the heart of statistics-led political punditry and fuels a belief among the right and the left that his re-election is imminent.

A more accurate conclusion is that most observers misunderstood and misapplied Silver’s analysis: Silver was saying that in roughly one out of every three elections Trump would win. That failure wasn’t the fault of experts and pundits alone. Rather, it reflects shortcomings that are built into the way we think about the world — and are capable of being fixed (to some degree.)

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