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by mpc755 2818 days ago
Another way to think of this is that spacetime has mass. Spacetime and dark matter are both referring to the same 'stuff'. The stuff is a supersolid that is displaced by ordinary matter.

The Earth displaces the 'stuff'. The displaced 'stuff' pushes back. The displaced 'stuff' pushing back is gravity.

Curved spacetime = Geometrical representation of gravity.

Displaced supersolid dark matter = Physical representation of gravity.