Then why would dark matter be detected in galaxies but not in void space ?
Why would those external world matter/energy be spatially syncrhonised at the place of galaxies ? Ockham Razor to the rescue.
I'm just a layman, but the parent said "if string theory is true, gravity does leak into the multiverse". Given that I'd imagine the clumpiness of our universe could influence the clumpiness of nearby universes (and vice versa).
Exactly. Not all galaxies have the same % of dark matter.In fact some have none.[1] Maybe those with little to none, formed by random fluctuations, while others formed because of the attraction to dark matter in their vicinity.
