This is Why We Think Parallel Universes Exist.

The most renowned and accepted experts in the matter, people that study and do research under the vigilant eyes of fellow and envious researchers, are presumably the people that have the most valid ideas on the universe and its compsition. Having said that, it is “…hard to imagine, not least because it means that everything that can happen will happen, and is also happening right now on another level of the multiverse. But this is just sci-fi fantasy isn’t it? The Many-Worlds theory was created in 1954 by Princeton University doctoral candidate Hugh Everett the Third.String Theory tells us that all matter and all forces have strings which dangle down to a level below the quantum level. The cold spot refers to a region of space in the radiation left over from our universe’s formation which is noticeably cooler than anywhere else…”