For example, in
Bubble universe theory, there are an infinite variety of «universes», each with different physical constants.
Not exact matches
Several strands of theoretical physics — quantum mechanics, string
theory and cosmic inflation — seem to converge on the idea that our
universe is only one among an infinite and ever - growing assemblage of disconnected
bubble universes.
According to a popular but polarizing framework called string
theory, the number of possible types of
universes that can
bubble up in a multiverse is around 10 ^ 500.