Watched with Dorothea episode two of Fringe. There were two gooey parts that I fast-forwarded through. She is much tougher about such things. A naive view of parallel universes: snapshot is taken, then replicated. All stuff thereafter proceeds in each independent of the other. (That’ s my verbiage.) Led directly to Wikipedia. Whoa, before finishing coffee.
Multiverse, many-worlds. Meta-universe, metaverse.
Hugh Everett III–remember the New Yorker article by his son?
“In cosmology, the Hubble volume, or Hubble sphere, is the region of the Universe surrounding an observer beyond which objects recede from the observer at a rate greater than the speed of light, due to the expansion of the Universe.” (Wikipedia)