IIRC, our universe didn’t create mass and energy from nothing, it was all packed into an exceptionally small point in space and the energy was likely in a form completely unknown to us before the Big Bang. I can’t discount that there may be more of those densely packed points somewhere in the universe that could be used to form new universes. We can’t detect anything like that now, but that doesn’t mean it doesn’t exist.
Didn’t our own universe create energy and mass out of nothing? Why couldn’t others?
IIRC, our universe didn’t create mass and energy from nothing, it was all packed into an exceptionally small point in space and the energy was likely in a form completely unknown to us before the Big Bang. I can’t discount that there may be more of those densely packed points somewhere in the universe that could be used to form new universes. We can’t detect anything like that now, but that doesn’t mean it doesn’t exist.