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GR is torsion-free. Why? And what would a patch of spacetime with torsion even look like?
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>Why? makes the theory simpler and makes sense >what would a patch of spacetime with torsion even look like? twists and turns in its geometry making the way things move around depend on the path they take and giving gravity a weird effect on matter
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>>85 Are there any computer simulations out there that visualize the effect? I've been looking but can't find any.