Timeline for Does localized space contraction occur?
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| Apr 26, 2018 at 20:35 | comment | added | user4552 | This sounds wrong to me, unless there's a much more detailed argument that you're not making in detail. GR doesn't say that mass-energy creates contraction, it says that mass-energy creates curvature. Contraction is a more specific interpretation of things like cosmological models, and in those models, there is not a correlation between contraction and the sign of the mass (i.e., an energy condition). For example, in a closed cosmology with a big crunch, you get contraction and then expansion, but there is no exotic matter. | |
| Apr 26, 2018 at 20:09 | vote | accept | SF. | ||
| Apr 26, 2018 at 19:32 | history | answered | Árpád Szendrei | CC BY-SA 3.0 |