How can two people watch the same video yet see two different things? How can two people witness the same event but arrive at two different truths about what they witnessed? How can the same evidence lead people to drastically different realities? In this episode, Dr. Jay Van Bavel at NYU explains.

Dr. Steven Franconeri explains the powerful insights and opportunities offered by a game he and his team at Northwestern University created for having better disagreements, better debates, better conversations, and better dialogues about just about anything, but especially about the sort of topics that often lead to fights and terrible holiday dinners.

Jordan Ellenberg, a world-class geometer, takes us on a far-ranging exploration of the power of geometry, which turns out to help us think better about practically everything.

Ellenberg is the John D. MacArthur Professor of Mathematics at the University of Wisconsin-Madison. His writing has appeared in Slate, the Wall Street Journal, the New York Times, the Washington Post, and the Boston Globe, and he is the New York Times bestselling author of How Not to Be Wrong – but in this episode we will discuss his new book, Shape: The hidden geometry of information, biology, strategy, democracy and everything else.