TED Radio Hour We live our lives by the calendar and the clock, but time is also an abstraction, even an illusion. In this hour, TED speakers explore how our sense of time changes depending on who and where we are.

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A journey through fascinating ideas, astonishing inventions, and new ways to think and create. Based on riveting TEDTalks from the world's most remarkable minds.

"Maybe our universe is just one of those things that happens from time to time," says theoretical physicist Sean Carroll. iStockphoto hide caption

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"Maybe our universe is just one of those things that happens from time to time," says theoretical physicist Sean Carroll.

"Maybe our universe is just one of those things that happens from time to time," says theoretical physicist Sean Carroll.

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Shifting Time

We live our lives by the calendar and the clock, but time is also an abstraction, even an illusion. In this hour, TED speakers explore how our sense of time changes depending on who and where we are.

Cesar Kuriyama explains his app 1 Second Everyday at TED. James Duncan Davidson/Courtesy of TED hide caption

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James Duncan Davidson/Courtesy of TED

Can You Remember Your Life 1 Second At A Time?

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Poet Rives explores why 4 a.m. has become synonymous with the strangest hour of the day. Bret Hartman/Courtesy of TED hide caption

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Bret Hartman/Courtesy of TED

Which Time Of Day Is Both Too Early And Too Late?

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Clocks Coldplay

"Human beings are works in progress that mistakenly think they're finished," says psychologist Dan Gilbert. Ryan Lash/Courtesy of TED hide caption

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Ryan Lash/Courtesy of TED

When Do We Become The Final Version of Ourselves?

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Psychologist Laura Carstensen explains why growing older also means growing happier for so many people. Michael Priest Photography/Courtesy of TED hide caption

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Michael Priest Photography/Courtesy of TED

Why Should We Look Forward To Getting Older?

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Does Anybody Really Know What Time It Is Chicago

Theoretical Physicist Sean Carroll asks why does time exist? Marla Aufmuth/Courtesy of TED hide caption

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Marla Aufmuth/Courtesy of TED

Why Does Time Exist?

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Everything's Got A Time Willie Dixon

TED Radio HourTED Radio Hour

A journey through fascinating ideas, astonishing inventions, and new ways to think and create. Based on riveting TEDTalks from the world's most remarkable minds.

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