# If there exists a universe with other than 3+1 dimensions, could we quantum tunnel to it?

If one of these other universes exist, could we in principle quantum tunnel to it?

I'm thinking in particular of how string theory predicts $$10^{500}$$ universes, and how we could, in principle, quantum tunnel to a universe that is in a lower-energy state. However, I do not know if these $$10^{500}$$ universes necessarily have the same dimensionality as the one we live in.