The Last Question

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The Last Question is a short story by Isaac Asimov.

It is about a question that is done to several computers on several ages. The question is about how to stop entropy. There are more advanced computers every time; from the big Multivac to smaller ones (anticipating miniaturization). At the end there is a huge universal computer. As the universe is coming to an end due to entropy, the computer, like God, solves the mystery of stopping entropy and recreates the universe.