Networks of observers influence the structure of reality. Source: iStock/iLexx Our view of the world is much the same as a squirrel’s. It opens its eyes, and the acorn is just miraculously there―it ...

ARE there vastly many near-duplicates of you reading vastly many near-duplicates of this article in vastly many parallel universes? Is consciousness a fundamental property of all matter? Could reality ...

Key points We, the observers, not only determine what we have for breakfast, but the structure of reality, of spacetime itself. It matters enormously to the laws of reality that we’re here studying ...