Schrödinger’s cat is a quantum physics thought experiment that involves putting a cat in a box and giving the cat a 50/50 chance of being poisoned. The thought experiment postulates that the cat is neither alive nor dead until you actually open the lid and peek inside.
Now scientists have reproduced this experiment (without any actual cats) and shown that not only can particles exist in two states at once, but they can even exist in two places at the same time.
In other words, Schrödinger’s cat really can be alive and dead at the same time. Now if people are going to test this on their own, they should probably substitute an actual cat with a white collar criminal instead. Then if the poison gas should kill the box’s occupant, no one will mind because at least a cat wasn’t harmed in the process.