If we in the West consider ourselves highly evolved, why do we take so many blowhard politicians seriously, even when they’re spouting blatant untruths? In her search to uncover the evolutionary lineage—and potential social benefits—of pride, Tracy cites a study that shows five-year-olds will believe people who show self-belief and certainty, even when they’ve been proven wrong. Adults, when partially distracted, are just as gullible.
At a basic level, it seems, all of us are hard-wired to pay attention to people who display pride…

