Something may be misleading in my post #7 above. I took little explanatory account of gravity's distortions or the fact that every object in the universe, therefore the quanta dynamics-like boiling cauldron of the greater universe (u), and Universe (U), itself, is always in motion (always in animation). The graduating reductionist look to photo-like stillness, a nakedly singular mural, regarding the background universe(s) in no way reflects any of this.... well, not really. The actual motion and animation would only have grown greater, vaster, faster, and even seemingly hotter, the more into non-local background (from any local foreground) the universe gets in space-time. The reductions through horizons to photo-like stillness is a collapse in ever increasing mass complexity (regarding background) to ever increasing simplicity of picture (regarding foreground). Of course that distant mural, as distant mural, does have its own realization; its own dimensionality; its own reality; its own entity; its own crunch and bang and vacuum of physicality. No universe traveler would or could ever -- open systemically -- grasp it (it would be forever beyond his reach), in a far distantly fixed, redshifted always, horizon from him. Evolutionary universe would always be coming out (blueshifted) of that distantly maintaining horizon mural toward him as he tried to travel toward, traveling into, the revolutionary horizons (the revolutionary divides (relativity to relativity, to relativity,....), Now (t=0), to Now (t=0), to Now (t=0),.... an always one the same constant of Now (t=0), out of Infinity constant (t=1)).
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It's a Multiverse Universe.