That’s actually a theory incorporated into M-theory (string theory)
Sorry, I just used the word theory three times.
Basically, there is a possibility, if string theory is correct and atoms are actually made up of tiny strings vibrating in 10 dimensions, we could have infinite parallel universes inside each and every quark contained in our body. We’re huge to them, and tiny to the universe WE are contained in.
How bout that? There could be billions upon trillions of creatures, things, worlds, inside each atom inside us. Infinite universes in one quark.
Mia your geek is showing.
This is why I study physics.
…whoah. brb, contemplating this forever.