Stewart Brand: The dawn of de-extinction. Are you ready?
Throughout humankind's history, we've driven species after species extinct: the passenger pigeon, the Eastern mountain lion, the dodo .... But now, says Stewart Brand, we have the technology (and the biology) to bring back species that humanity wiped out. So -- should we? Which ones? He asks a big question whose answer is closer than you may think.
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True Humanity At Its Finest
When this autistic man started having trouble singing the national anthem, something happened that could bring you to tears. What an amazing display of humanity. It's great to see that there is still goodness in the world.
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When Someone's Not Right
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How Great Leaders Inspire Action
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Diana Nyad: What will YOU do with your wild, precious life?
Diana Nyad set long-distance swim records that are still unbroken. Thirty years later, at 60, she attempted her longest swim yet, from Cuba to Florida. In this funny, powerful talk at TEDMED, she talks about how to prepare mentally to achieve an extreme dream, and asks: What will YOU do with your wild, precious life?