Alex Honnold stunned the world by climbing El Capitan without a rope. So how did he do it? And why take such a chance?
Intelligent. Optimistic. Curious.
Audio
We hear from Artificial Intelligence pioneer Marvin Minsky, physicist Roger Penrose, philosopher Daniel Dennett, New Age guru Deepak Chopra, and many more.
Susan Abulhawa and Margot Singer talk with Steve Paulson about their experiences and writing about life in the refugee camps of the West Bank.
In China's government-supported tiger farms, big cats are raised and harvested for their body parts -- part of a multi-million dollar trade in tiger bone wine and tiger skin decor. Meanwhile, wild tiger numbers are at an all-time low.
Roy Kaplan tells Steve Paulson what really happens to those people who hit the lottery.
This week in Watch This! we talk about Oscar nominee "Karama Has No Walls," and Oscar winner, "The Lady in Number Six."
Sapphire performs several of her poems and tells Judith Strasser why she enjoys working in some very old poetic forms such as the villanelle.
Anthropologist Tom Boellstorff takes us on a tour through the virtual world of Second Life.
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