Favorite talks
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Play
Natalie Merchant sings old poems to life
29:18 Posted: Apr 2010
Views: 418,132 | Comments: 174
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Play
Gary Lauder's new traffic sign: Take Turns
04:26 Posted: Mar 2010
Views: 312,542 | Comments: 194
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David Deutsch: A new way to explain explanation
16:38 Posted: Oct 2009
Views: 396,074 | Comments: 243