Supernormal Stimuli: How Primal Urges Overran Their Evolutionary Purpose

Deirdre Barrett

Harvard evolutionary psychologist Deirdre Barrett explains how human instincts—for food, sex, or territorial protection—developed for life on the savannah ten thousand years ago, not for today’s world of densely populated cities, technological innovations, and pollution. Evolution, quite simply, has been unable to keep pace with the rapid changes of modern life. We now have access to a glut of larger-than-life objects—from candy to pornography to atomic bombs—that gratify outmoded but persistent drives with dangerous results.

ANF Philosophy & Psychology 001