How to wrap your mind around the real multiverse

Science fiction’s visions of multiple universes differ from the real theory

Science Photo Library / Alamy

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or mathematician to tell you about fascinating ideas from their corner of the universe. You can sign up for Lost in Space-Time for free here.

Imagine passing through a mysterious portal and encountering a version of yourself as you would have wished to be. Instead of taking up that tedious job at the accountancy firm, you followed your dreams…


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