Quantum mechanics says that space and time are different things. Three dimensional changing universe, general relativity says that it’s a four dimensional static universe and time already exists. If we increase these three or four dimensions to infinity then that would be a theory that describes everything. If there is a theory that describes everything then that would be a theory that the universe is infinity-dimensional. There even exists an interpretation in quantum mechanics that produces uncountably many universes just to get out of collapsing a wave function.

Gravity is infinite inside the singularity ofa black hole which means that if you’re already inside the singularity and are trying to escape, you instantaneously pop back into the singularity.