The Age of Average—a cultural era stretching from Quetelet’s invention of social physics in the 1840s until today—can be characterized by two assumptions unconsciously shared by almost every member of society: Quetelet’s idea of the average man and Galton’s idea of rank. We have all come to believe, like Quetelet, that the average is a reliable index of normality, particularly when it comes to physical health, mental health, personality, and economic status. We have also come to believe that an individual’s rank on narrow metrics of achievement can be used to judge their talent.
