Most of us don’t know most things. Yet most of us also think we understand a lot (OK, not quantum mechanics or Federal Reserve policy). We are all living with what Sloman and Fernbach argue is an Illusion of how much we know: a knowledge illusion. And this is fueling the fracturing of society.

Steve Sloman and Phil Fernbach: How Do You Know That?

Learn to connect better with others in every area of your life. Immerse yourself in spirited conversations with people who know how hard it is, and yet how good it feels, to really connect with other people – whether it’s one person, an audience or a whole country. You'll know many of the people in these conversations – they are luminaries in our culture. Some you may not know. But what links them all is their powerful ability to relate and communicate. It's something we need now more than ever.

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Science

Should we be planning to establish settlements on the moon and Mars? To many, including a couple of billionaires, the idea has become almost an obsession. An unlikely husband and wife duo has spent years digging deeply into plans to colonize space. Their conclusion: not so fast.

Kelly and Zach Weinersmith: A Second Home on Mars?

We exist because of the moon. Rebecca Boyle relates the amazing story of how the moon, born of a cataclysmic collision with an infant earth, has shaped our history, our evolution, and even our very existence.

Rebecca Boyle: Moonstruck

Her new book tracks the momentous events of the 1960s when her husband, Dick Goodwin, worked closely with both JFK and LBJ, and Doris worked with LBJ, as the two very different presidents shaped the future.

Doris Kearns Goodwin: In the Rooms Where it Happened

Alan and Executive Producer Graham Chedd chat about and play excerpts from Alan's conversations with some of the guests in the new season, beginning next week. Guests include newspaper editor Adam Moss; science journalist Rebecca Boyle; and writers Kelly and Zach Weinersmith.

Clear+Vivid with Alan Alda - Season 25 trailer

Stephen Dubner, host of Freakonomics Radio, has long been fascinated by the great physicist Richard Feynman. As has Alan. Stephen has devoted a year to making a remarkable podcast series on Feynman, and Alan has played Feynman on the stage for a year. They compare notes on what they’ve come to learn about him.

Steve Sloman and Phil Fernbach: How Do You Know That?

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