Some scientists say we live in a multiverse, and that the universe we inhabit is just one of many — or perhaps an infinite number — in existence.

The multiverse has been gathering steam for some time, but in 2022 it asserted its dominance in the film industry, surfacing in indie movies and superhero blockbusters alike.

From Doctor Strange to Rick & Morty, everyone is diving into the multiverse at the moment, but why is it so popular?