A Multiverse is the set of infinite (or even nigh-infinite as it depends on the fiction but mostly on confirmation of the writers and or authors.) universes with this it's comprise of everything that exists within reality its the construction/entirety of all space, time, matter, and energy as well as the physical laws the multiverse will have possible Universes (realities) that are either the same or different from the original in a way it is a hierarchy each Universe within the Multiverse. Any change adds new possibility's making a new reality causing infinite more numbers of universes to be made.

Examples of Multiverse

See Also