black hole universes, bubble universes, many worlds theory, parallel universes, quantum mechanics

The Complicated Science of Parallel Universes

When physicists talk about the universe, they don’t really mean the entire universe. They’re referring to the observable universe. And that’s not much. It’s just the part we’ve so far been able to see. When physicists talk about the multiverse or parallel universes, they are referring to distinct hypothesized models for the universe. These are ...

Armin Auctor

Parallel universes.