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"It was over the last century, says Cain, that society began reshaping itself as an extrovert’s paradise—to the introvert’s demise. She explains that before the twentieth century, we lived in what historians called a “culture of character,” when you were expected to conduct yourself morally with quiet integrity. But when people starting flocking to the cities and working for big businesses the question became, how do I stand out in a crowd? We morphed into a “culture of personality,” which she says sparked a fascination with glittering movie stars, bubbly employees and outgoing leadership."