Are humans hard-wired to forgive? Psychologist Michael McCullough's research traces the evolutionary roots of forgiveness and revenge.
Intelligent. Optimistic. Curious.
Audio
Brian Turtle tells Steve Paulson how he came up with the game "Six Degrees of Kevin Bacon" and plays a few rounds with Steve.
Contemplating the multiverse is mind-blowing, but if you want a truly earth-shattering controversy in physics, you have to go back 500 years to Copernicus' radical theory. Dava Sobel tells his story.
Ayaan Hirsi Ali may be the world’s most famous critic of Islam. Born a Muslim, Hirsi Ali fled to the Netherlands where she eventually became a member of Parliament...
Author of "Waiting for Snow in Havana" started to worry about death as a child, growing up in Cuba during an era of public executions ...
Physicist Michio Kaku's Dangerous Idea? A virtual "library of souls."
Canadian philosopher Charles Taylor says we're now living in "a secular age," but we're still trying to figure out what a post-religious world looks like, and how we can find meaning in a culture without any over-arching purpose.
A few years ago, poet Christian Wiman picked up his pen after a three-year hiatus, when he fell in love and was diagnosed with cancer. Listen in as he reads a poem from "Every Riven Thing," the book of poems that followed. You can also hear our interview with him about the collection.
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