Science & Nature

The first AI universe sim is fast and accurate—and its creators don’t know how it works – Phys.org

The first AI universe sim is fast and accurate—and its creators don’t know how it works – Phys.org

A comparison of the accuracy of two models of the universe. The new model (left), dubbed D3M, is both faster and more accurate than an existing method (right) called second-order perturbation theory, or 2LPT. The colors represent the average displacement error in millions of light-years for each point in the grid relative to a high-accuracy…

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