I've studied physics but not intensely as I'm still pretty young and have the rest of my life to take care of. Sometimes during my break periods I will use up my time either researching or discussing things like this on a forum but it' only recreation. I only devote a certain amount of my effort to physics when I can my main area is psychology. I can conceive of unlimited parallel universes and dimensions because I don't believe a boundary on reality would make sense in the face of infinite potential and duality. what the big bang involves I have a fair idea. How a 4 dimensional shape is created geometrically I can re-create. I barely understand E=mc2, but enough to verify it's usefulness in some areas. I do realize particles can communicate instantly faster than the speed of light and so conventional physics including the theory of relativity is at best an incomplete theory and does not completely fit the model of other areas of science like quantum studies that have revealed conflicting results.

The Dimensions consist of length, width, depth, height. Density/mass. Motions within these fields produce time that is the highest dimensional field I can conceive of. I suspect black holes are portals to other universes that probably have differently tuned structures and dimensions beyond my understanding. And I suspect that our own universe came from a black hole itself from another universe.

I don't know if that answers your question or not, but it's only the tip of the iceberg.

I've used up my free time now anyway so I cannot afford much longer on this site for a while.