As Multiverse theories are now long established as at least a “discussion point” I have wondered if the answers to dark matter could lie wrapped up within one of, or a variation of these Multiverse theories.

If our spacetime was created within a higher dimensional realm could dark matter be some of that realms’ own matter/mulitverse soup/energy that didn’t quite convert over to our 4 dimensions during the Big Bang.

Ie something that has more than 3 dimensions of space.

As it didn’t convert fully into our version of spacetime it could explain why we cannot directly interact with it. But maybe its presence across multidimensional spacetime is enough for its gravity to be felt and then it does its stuff like shape galaxies, galaxy clusters and maybe other stuff like supermassive blackholes.