Are multiverses real?

The idea of a multiverse – a hypothetical collection of all possible universes – is one that science fiction fans love to explore. But are multiverses actually real? Associate Professor of Astronomy Zachary Slepian, Ph.D., says the answer depends on how you define “real.”

Read more on The Conversation’s website: https://theconversation.com/are-multiverses-real-an-astrophysicist-explains-why-it-depends-on-how-you-define-real-268357