Due to recent years of superhero movies like Marvel and DC, the multiverse concept has become more popular.
But the theory of multiverse in movies started way back in the 1990s, after works of fiction from the time about the concept gained popularity.
Even the video game industry has been embracing the multiverse concept, with games such as Ratchet & Clank: Rift Apart, Fortnite, and Mortal Kombat.
It's a huge and exciting concept with endless storytelling possibilities.
It's also a way to connect different franchises and characters and explore different themes and ideas.
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