decoherence

Are there parallel universes? Universes in which, rather than reading this article, you are still asleep; in which you are happier, unhappier, richer, poorer, or even dead? The answer is "possibly". It's a controversial claim but one that has won more and more followers over the last few decades.

  • Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.