Trust is the foundation for everything we do. But what do we do when it’s broken? In an eye-opening talk, Harvard Business School professor Frances Frei gives a crash course in trust: how to build it, maintain it and rebuild it — something she worked on during a recent stint at Uber. “If we can learn to trust one another more, we can have unprecedented human progress,” Frei says.

This talk was presented at an official TED conference, and was featured by our editors on the home page.