No Big Deal. He’s Just Trying To Educate The Whole World. For Free.

Sal Khan was tutoring his cousins and wanted to share his knowledge more widely, so he started recording his lessons. Now he’s reaching millions with free classes on just about anything.

Communication

A dark sense of humor doesn’t mean you’re gloomy. It actually reveals 3 surprising strengths.

Communication

People expected to enjoy unfamiliar stories more. An experiment found the opposite.

Education

A teacher gave 32 eighth graders an impossible math problem. One kid’s second guess says so much.

Culture

He took up competitive gaming after retiring. Then he retired again—with a championship.