Introverts and extroverts sometimes feel mutually put off, but Thorne’s research suggests how much each has to offer the other. Extroverts need to know that introverts—who often seem to disdain the superficial—may be only too happy to be tugged along to a more lighthearted place; and introverts, who sometimes feel as if their propensity for problem talk makes them a drag, should know that they make it safe for others to get serious.

