Dan Gilbert presents research and data from his exploration of happiness -- sharing some surprising tests and experiments that you can also try on yourself. Watch through to the end for a sparkling Q&A with some familiar TED faces.

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Homeopathy, Magnets, and Quackery from Brian Brushwood's lecture, "Scams, Sasquatch, and the Supernatural."

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Universal Cache Miss Equations for the Memory Hierarchy

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70% of India lives in semi-urban and rural areas— but 80% of the countrys healthcare facilities are in metros.

Its that astounding statistic that led two young doctors in Bangalore to come together 4 years ago to set up Vaatsalaya Healthcare—a chain of hospitals for Indias vast semi urban and rural population

Elizabeth Gilbert muses on the impossible things we expect from artists and geniuses -- and shares the radical idea that, instead of the rare person "being" a genius, all of us "have" a genius. It's a funny, personal and surprisingly moving talk.

Giant Water Slide.

Quoted: The really amazing part is that he didn't have to wait in line to ride it.

AI videos from IJCAI

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Quoted: A Song by programmers, for programmers.

Quoted: Academic Earth - Playlists