Why do we assume the big bang created matter/antimatter?
What if pure energy doesn't create matter/antimatter pairs, but entangled matter/matter-wave pairs?
Duality is then literally two separate entities. When something becomes observed, the matter-wave becomes one with the particle it "represents".
I'd say that would give a galaxy the extra mass dark matter is claiming to give. And we could say this is why matter waves have mass.
I'm not sure if it means everything is twice as heavy as it should be or not.
There is the other idea that the matter wave partner is not connected in any way and just gets dumped in a sea of matter waves in the quantum realm (a fog of dark matter).
I think this is related:
What if Dark Matter is the most obvious answer of all ..it's matter that's been in an unobservable black hole?
I'm saying it's matter that prevents the information paradox ..or it was matter in a black hole so big it exploded (super early in time)
How about it's showing us we are in a higher dimensional black hole? Might explain why cosmic voids are expanding.