Visit http://TED.com/shapeyourfuture to watch more groundbreaking talks from the TED Fellows.

The universe started with a bang — but how will it end? With astonishing visuals, cosmologist and TED Fellow Katie Mack takes us to the theoretical end of everything, some trillions of years in the future, in a profound meditation on existence, wonder and the legacy of humanity within the immensity of time and space.

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