Christina Warinner: Tracking ancient diseases usin...

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Brian Greene: Why is our universe fine-tuned for l...

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Michael Norton: How to buy happiness

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Dan Gilbert asks, Why are we happy?

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Eduardo Paes: The 4 commandments of cities

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http://www.ted.com Eduardo Paes is the mayor of Ri...

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Dan Ariely on our buggy moral code

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http://www.ted.com Behavioral economist Dan Ariely...

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Nancy Lublin: Texting that saves lives

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Amory Lovins: A 50-year plan for energy

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http://www.ted.com In this intimate talk filmed at...

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