One more thing…

This is what your Roomba does while you’re at work. Well, aside from mulling over how to make your cat’s death look like an accident. From Signal theorist:

Now here’s something interesting, I set up a photo camera in my room, turned out all the lights and took a long-exposure shot of my roomba doing it’s thing for about 30 minutes. The result is a picture that shows the path of the roomba through it’s cleaning cycle, it looks like a flight map or something. It really hits every spot!

Signal theorist: Roomba, economics and long-exposure photography via challenged confessions