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Oct 25, 2018 at 15:41 comment added levitopher If you're going to mention this, you should also mention exotic smooth structure, which fits into the paradigm of Einstein-Cartan gravity (since it's part of the underlying manifold structure), and can distort local space-time in exactly the way mass can. But, I also don't think either of these things answer the question, "should we call it dark matter?"
Oct 22, 2018 at 14:57 history edited MadMax CC BY-SA 4.0
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Oct 22, 2018 at 14:49 history answered MadMax CC BY-SA 4.0