(la strega Weatherwax del Mondo Disco di Pratchett commenta il gatto di Schrödinger) "Technically, a cat locked in a box may be alive or it may be dead. You never know until you look. In fact, the mere act of opening the box will determine the state of the cat, although in this case there were three determinate states the cat could be in: these being Alive, Dead, and Bloody Furious"
