In "When Everyone Knows That Everyone Knows," Pinker maps out how human beings can’t help but try to suss one another out.

Common knowledge is the secret engine of social life, letting us coordinate everything from meet-ups to markets to international diplomacy. In this fascinating talk, experimental cognitive scientist ...

The oddities of social life—and our efforts to cooperate and coordinate—may turn on our assumptions about the knowledge we share.

In a new book, the Harvard psychologist Steven Pinker argues that an awareness that everyone knows what you know is a ...

The experimental cognitive psychologist and popular science writer, Steven Pinker delves into the intricacies of human interactions in his latest book, ‘When Everyone Knows That Everyone Knows...: ...

In a New Yorker cartoon about marital relations, a husband tells his wife, “Of course I care about how you imagined I thought you perceived I wanted you to feel.” In When Everyone Knows That Everyone ...

Before boarding a flight to South Africa in 2013, Justine Sacco sent a sardonic joke to her 170 Twitter followers: “Going to Africa. Hope I don’t get AIDS. Just kidding—I’m white!” By the time her ...