Are Parallel Dimensions just frames in time?

I think about space time questions every day, and I believe that parallel dimensions are just frames in time. Like a single cell in a movie reel. My theory is that dark matter is the catalyst that sends matter from one dimension to the next, and it rarely can be found because it is only here, long enough to send matter to the next dimension. It is all the dimensions strung together, that make up time itself. I feel that tied to every molecule has an identical piece of dark matter tied to it, solely with the function of moving that molecule to the next dimension. The dark matter exists in our frame of time for nanoseconds, and stays behind in the last dimension, in place of the matter it replaces. That is the reason time travel will never happen, but we might, one day, be able to view time, from a backwards perspective.