Ah, Schrödinger's cat.....an "irreversible" or effectively irreversible process causes the decay of quantum coherence, which imparts the classical behavior of "observation" or "measurement". Can we measure what we are seeing here, and is that cat dead or alive?
God I wish I'd thought of that when the boys were asking to marry my daughters. I got 'em wondering what they were getting into when I told them both this was a "...no warranty, no return deal. If you think you can handle her, she's all yours. But she doesn't come back home."