Could Parallel Universes Be Physically Real?

You’ve likely imagined it before: another Universe out there, just like this one, where all the random events and chances that brought about our reality exactly as it is played out just the same. Except right now, when you made one fateful decision in this Universe, you took an alternate path in this other Universe. These two Universes, which ran parallel to one another for so long, suddenly diverge.

Perhaps our Universe, with the version of events we’re familiar with, isn’t the only one out there. Perhaps there are other Universes, perhaps even with different versions of ourselves, different histories and alternate outcomes from what we’ve experienced. This isn’t just fiction, but one of the most exciting possibilities brought up by theoretical physics. Here’s what the science says about whether parallel Universes might actually be real.

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