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There is no such thing as karma, at least not for stars and galaxies in a universe cycling through a series of big bangs and big crunches. Apparently whatever happens to stars and galaxies in the present universe doesn’t affect them in their next incarnation.

The cyclic universe model was proposed in 2002 by Paul Steinhardt of Princeton University and Neil Turok of the University of Cambridge. In their model, the universe bounces through a series of big bangs and crunches, with each cycle lasting about a trillion years. The model solves some of the problems with the standard big…

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