Normal Space To Subspace: Void, Hyperspace, And The Nexus

I am developing a theory that hyperspace is simply a deeper layer of the void. As one pentrates deeper into the void distances within the curvature of normal space time become shorter and shorter which accounts for why a starship can travel apparently faster than the speed of light from point a to point b through the void. As one travels deeper through the layers of the void the time required to travel between point a and point b becomes ever increasingly closer to near instantaneous travel. However, the problem still exists as to how to penetrate deeper into layers of void space and when able to get there how to accurately navigate that transition back into normal space. These layers may comprise subspatial phoemenon as a whole starting with Normal Space, Void Space, Hyperspace, and Nexus Space. Of course I may be all wet on this theory speculative as it maybe.