FangTheCat perrallel universes and the multiverse (Multiple Univers) theory are the same thing, the theory behing the multivers is that for action anything did for example lets say when i wokr up today i had a choice between haveing a sandwitch, cerial, or not eating at all witch ever choice i make a nother univers would be created out of the other choices i could have made, and those other dimentions can have their own choices, this can even go as small as the movement of particles so tecnically there are is essentally a unlinmited number of earths. and yes that mean out there the Star Wars, Stare Treack, Battle Star geletica ect univereses would exist somewhere out there
