Favorite talks
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Jane McGonigal: Gaming can make a better world
20:03 Posted: Mar 2010
Views: 3,032,873 | Comments: 1154
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A.J. Jacobs: My year of living biblically
17:40 Posted: Jul 2008
Views: 913,486 | Comments: 485
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Hans Rosling: Stats that reshape your worldview
19:50 Posted: Jun 2006
Views: 5,342,722 | Comments: 428