The above is the work of the cleaning robot Roomba. This shot was taken using the long-exposure of 30 minutes and that’s the Roomba’s path. At the center you can see a spiral, is Roomba confused? Lol.
Words from creator: “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!”