They say that a cat has nine lives, mostly because of their uncanny ability to find themselves in — and escape from — frequently perilous situations. Perhaps, of all the animals that he could have chosen, that’s why Schrödinger made his famous thought experiment about the most diminutive of felines.
But there’s an incredible outcome that one interpretation — the Many-Worlds Interpretation — of quantum mechanics allow for: that any time there’s a situation where you have the opportunity to either meet your demise or survive, there’s a Universe where you continue to live.
Could this result in a kind of quantum immortality? Paul Halpern explores the possibilities.