The quantum-mechanical " Schrödinger's cat " theorem according to the many-worlds interpretation. In this interpretation, every event is a branch point; the cat is both alive and dead, even before the box is opened, but the "alive" and "dead" cats are in different branches of the universe, both of which are equally real, but which do not interact with each other...etc

Why parallel worlds do not interact with each other? Is it possible (at least theoretically) for parallel worlds to interfere with each other?

The quantum-mechanical " Schrödinger's cat " theorem according to the many-worlds interpretation (MWI). In this interpretation, every event is a branch point; the cat is both alive and dead, even before the box is opened, but the "alive" and "dead" cats are in different branches of the universe, both of which are equally real, but which do not interact with each other...etc

Why parallel worlds do not interact with each other? Is it possible (at least theoretically) for parallel worlds to interfere with each other?