Somewhere in the vastness of the cosmos, there are planets resembling Earth. And on these planets live other versions of you, who have made radically different life choices.

What lies beyond the edges of the observable universe? Is it possible that our universe is just one of many in a much larger multiverse? Movies can’t get enough of exploring these questions.

Theories explain; metaphors reflect. The multiverse, as a theory, emerged because of some as-yet-unexplained problems resolving Einstein’s general relativity with the mysteries of quantum ...