Multiverse

The multiverse is a set of possible universes, including the universe in which we live. Together, these universes comprise everything that exists: the entirety of spacetime, and the physical laws that define and describe them.

They are also called bubble universes in that they appear, grow, and then pop like bubbles into nothingness over vast cosmic timelines, or pocket universes with cycles that produce habitable conditions repeatedly inside each pocket.

The various universes within the multiverse are called paraverses, "parallel universes", "other universes", or "alternative universes".

The multiverse has countless finite or even transfinite universes, and infinite multiverses can only be in the megaverse. Each universe in the multiverse represents one instance, whereas infinite instances are in the megaverse. A time travel paradox will violate causality and therefore break a bubble universe and form another, transferring the cause/effect into another instance.

Michio Kaku has said the multiverse is an 11-dimensional "bubble bath" but for the purposes of this wiki, the omniverse is in 11d.

Part of 6d physics
The multiverse is an energy based expression of the universe with time fragmenting along all plausible causality lines, making it no longer fate but choice. Mass including 4d only travels one path so the other eventualities collapse under the weight of time.

Wave particle duality
The double-slit experiments showed that under a quantum observation, matter acted like a particle but like a wave when unobserved. This is due to the interaction that brings both the 4d and 6d together. Instead of acting in 6d space like it should, the observer forces the 4d reaction by forcing mass down one path.