Side note, which might be semi pertinent. I had a brain fart the other day in regards to SR/GR (relativity of both varieties). I realized that the zero point was such, in the equations I was using, that actual spacetime distance (not just space- space distance had discrepancies) was remaining exactly equal for all particles in existence (according to the math I was using).

So basically, multidimensional spacetime would have particles that remained equally spaced within it forever- an unchanging distance ratio between all particles.

No matter which particle you choose, it is equally spaced from all other particles in spacetime, and its mass/energy/momentum would be the same as all other particles like it, although it would have a unique space trajectory (total spacetime traveled would be exactly the same for all particles).

This leaves out the effects of consciousness having an effect upon spacetime trajectory...