Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jun 28, 2012
Ruy Marra is a lawyer, a graduate of Biopsychology and the author of "Taking Off to Happiness." He holds a world record in tandem hang gliding. [Note: We want you to see these talks exactly as they happened! The archive footage might be a little rougher than the usual TED.com talk.]