The Multiverse is Hypothetical

The multiverse comes from the idea that beyond the sphere of our observable Universe are other universes, distantly separated from ours.

Richard Bower, professor of cosmology theorised four levels of the multiverse.

1. An infinite universe in which “every possibility that could happen would happen”
2. Multiverses where the basic laws of physics are the same, but fundamental constants differ.
3. The many worlds' interpretation of quantum mechanics where every choice causes a split in the Universe, leading to infinite parallel realities.
4. Multiverses that have entirely different laws of physics.