Que Sera Sera.

"Well, let's see. We might consider Schrödinger's Cat :

In 1935, Erwin Schrödinger, in an attempt to explain the Copenhagen interpretation of quantum physics, he proposed an experiment where a cat is placed in a box with a sealed vial of poison that will break open at a random time. Now, since no one knows when or if the poison has been released, until the box is open, the cat can be thought of as both alive and dead."

- Sheldon, The Big Bang Theory S01E17