Google X, AI and cat recognition

So let me see if I understand this

Google's "X laboratory" (geez, secret supervillain organisation-sounding name much?) has been experimenting with AI and neural nets. They decided to hook 16,000 computer processors together and set this assemblage to examining a few million stills from Youtube videos. Without any prompting or input about what it should or should not look for, the neural net learned how to distinguish "cat" from "not a cat", and to recognise when a cat appeared in a still.

That's kind of cool. Weird, but cool.