From using words to overthrowing regimes, shared awareness is necessary for people to coordinate. The cognitive scientist explains to Nature how it works. When Everyone Knows That Everyone Knows...: ...

At some point in the past decade or two, dance-music d.j.s discovered a way of punctuating their sets with a prank. Just as the music was reaching a crescendo, it would glitch, then cut out completely ...

It's the age-old question. You've been going out with your special someone for a few months (or weeks? days?) and you're starting to relate to Taylor Swift singing, "You can hear it in the silence, ...

Before I became an international travel journalist, I was a screenwriter in Hollywood. At almost every pitch meeting, business lunch, and party, I met interesting, smart people. Most of them spoke ...

How do you tell a friend that you’re tired of having the same conversation over and over? By Kwame Anthony Appiah I have a wealthy friend (not billions, but well over $20 million) who talks almost ...