Imagine a physicist sitting in a chamber with a gun pointed directly at her head. Every few seconds, the spin direction of a random particle in the room is measured. If the particle is spinning one ...

Thanks to science fiction, we all have a basic grip on the theory of the multiverse: the idea that there are innumerable parallel worlds in which the chances and choices of the past – the roads not ...

Pick up any science fiction book from the 1960s, and you’ll find parallel dimensions explained through magic portals or mysterious machines that work “just because.” Today’s readers want stories that ...

Google's quantum computing breakthrough on Monday has left the physicist who heads the project a believer in 'the idea that we live in a multiverse.' 'Willow,' the tech giant's new quantum chip, ...