schrodingercat

A cat is in a sealed box. You release a poison that has a 50% chance of killing the cat, and 50% chance of doing nothing. Until you open the box...

Schrödinger's Cat was a thought experiment by physicist Erwin Schrödinger when he originally wanted to demonstrate the absurdity of superposition, which turned out to be a fundamental aspect of quantum mechanics.

Not unlike Erwin's cat, schrodingercat is in a constant state of flux, contained in a twitterstream. She may wax about politics today, or catnip tomorrow. But until you've observed her...

...the cat is technically both dead and alive.