"Do you know that thought experiment with the cat in the box with the poison? Theory requires the cat be both alive and dead until observed. Well, I actually performed the experiment. Dozens of times. The bad news is that reality doesn't exist. The good news is we have a new cat graveyard."
The Schrödinger's Cat thought experiment is an increasingly popular Motif in fiction. Erwin Schrödinger originally presented it to demonstrate how the Copenhagen interpretation, the classic interpretation of quantum mechanics, was utterly idiotic. It has since been appropriated by the general public; the pop-culture version of the experiment now serves as a metaphor for uncertainty of the truth, fate, Quantum Physics, how quantum physics can do anything, and whatever the hell is inside that box. Schrödinger's name has itself become a byword to invoke these ideas, among the general public, and on This Very Wiki. When used in a work of fiction, it can either show off the writer's cleverness, or lack of research. (Possibly both at the same time.)