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What prevents the formation of many sub-universes with different space-time configurations? We happen to live a large 3+1 one, but others may exist. Speculating
by akomtu 3y ago
What prevents the formation of many sub-universes with different space-time configurations? We happen to live a large 3+1 one, but others may exist. Speculating further, some black holes could be bridges between e.g. a 3+1 world and a 4+3 world. The observation about 7-dimensional spaces would mean that above that level there are no such boundaries between world, they all become one universe.
- tsimionescu 3y agoI believe that when people talk about N-dimensional spaces they typically talk about spaces with a Euclidean metric unless they explicitly say otherwise. The properties of a sphere in an N-dimensional Euclidean space are not all the same as those in an N-dimensional Minkowski-like spacetime (either 6+1 or 4+3 or any combination).