[Colonel Flagg]

I think it's referring to completely different universes. Parallel universes, as I recall, are universes that result from the quantum mechanical observations made on subatomic particles. In the animation, these would be part of the 7th dimension, where all possible pathways collapse to a point. The 8th dimension, I think, could be represented by a surfeit of antimatter rather than of matter at the completion of the Big Bang; or even perhaps a different mode of "universe-initiation" not involving a Big Bang (perhaps a Gnab Gib?). In other words, a universe where the known physical constants and physical laws do not apply.

I know a good speculative fiction novel that explores this concept. The novel s fictional, but the physics applied within it is accurate, which makes it a very interesting read.

But what the hell do I know, I'm a chemist, for Christ's sake!