Does a Parallel Universe Really Exist?

 

parallel universe

In 1954, a young Princeton University doctoral candidate named Hugh Everett III came up with a radical idea: A parallel universe, exactly like our ­universe, exists. Multiple universes are all related to ours; indeed, they branch off from ours, and our universe branches off from others.

Within a parallel universe, also known as an alternate universe, our wars have had different outcomes than the ones we know. Extinct species in our universe have evolved and adapted in separate universes. In these parallel worlds, we humans might have become extinct. Some versions even posit that there are infinite universes with infinite possibilities.

parallel-universe