The simplest reason is that essentialism is intuitive. We experience our own emotions as automatic reactions, so it’s easy to believe that they spring forth from ancient, dedicated parts of the brain. We also see emotions in blinks, furrowed brows, and other muscle twitches, and we hear emotions in the pitch and lilt of voices, without any sense of effort or agency. Therefore, it’s also easy to believe that we’ve been engineered by nature to recognize emotional displays and programmed to act on them. That’s a dubious conclusion, however. Millions of people around the world can instantly,
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