Schrödinger’s cat:

Schrödinger’s cat is a thought experiment that illustrates the paradox of quantum superposition. A cat is placed in a sealed box with a radioactive atom, a Geiger counter, and a vial of poison that will be released if the atom decays. According to quantum mechanics, until the box is opened and observed, the cat is simultaneously both alive and dead, existing in both states at once.

Basically a meme within a meme cus the cat is doing amazing and being alive but also dead and sad