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Nvidia Is Simulating a Copy of the Earth
(futurism.com)
This is a most excellent place for technology news and articles.
Are we sure it won't create a paradox and destroy the universe?
Yes. I think so. It just takes an exponential amount of energy and/or time. At some point it will stop due to energy limitations. Or will be stopped because computation time approaches infinity, even if all energy in the universe is available.
Also, now I think about the movie "The Thirteenth Floor".