Dark matter is caused by spacetime being pulled in on itself by a large amount of black holes, typically in a super cluster on a correlating opposite side of the universe. Spacetime is shaped like a 4 dimensional sphere, and where black holes bend spacetime, they bore straight through to the opposing side of the universe. Nothing physical is pulled into the holes within spacetime, but spacetime will continue to be pulled through, ejecting more spacetime on the other side. This will drag super clusters together, eventually pulling all of them into one spot, resulting in a big crunch.

If I missed something that makes absolutely no sense, please point it out, but I've solved it. I need to 3D model what I'm trying to explain.