"I am more concerned about the ... kind of scenario where we have willingly given away our autonomy in exchange for a little bit of convenience." — Alessandro Acquisti James Duncan Davidson/TED hide caption

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TED Radio Hour

Alessandro Acquisti: Does More Convenience Mean Less Privacy?

Behavioral economist Alessandro Acquisti studies how everyday decisions blur the line between our public and private lives.

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"People like to share, if you give them the opportunity and the choice." — John Wilbanks James Duncan Davidson/TED hide caption

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"What we need to do is think of ourselves as active participants in the conversation." — Beth Noveck James Duncan Davidson/TED hide caption

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"It's my job to keep secrets." — Mikko Hyppönen TEDx Brussels/Scorpix hide caption

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"By me putting all this information out there, what I'm basically telling you is I'm telling you everything." — Hasan Elahi James Duncan Davidson/TED hide caption

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Billie Jean King, seen here in 1977, learned to play tennis on the public courts near her Long Beach, Calif., home. Kathy Willens/AP/Press Association Images hide caption

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Daniel Pearl and Asra Nomani in Karachi in 2001 Courtesy Asra Nomani hide caption

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Joaquin Phoenix's Her character, Theodore, has a job writing intimate — and sometimes erotic — cards and letters on behalf of other people. Courtesy of Warner Bros. Pictures hide caption

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Prior to filming, director Paul Greengrass kept the pirate crew and the boat crew separate to make the hijacking scenes feel more authentic. "The hair did stand up on the back of our heads," says Tom Hanks, above. Hopper Stone, SMPSP hide caption

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