So Erwin Schrödinger had a cat. He decided he would theoretically put his cat in a box with a vial of radioactive funk that would destabilize and kill the cat if so much as one atom decayed. Erwin gave himself an hour to wait and see if the fluid destabilized. At the end of the hour Erwin concluded that… he would not open the box, theorizing that at that moment he had both a living and dead cat. He reasoned that the act of opening the box and observing would change the result. This is the quantum mechanics version of a tree falling in the woods with no one to hear it... well, sort of.