Tlön liked asteroid belts around many stars and large planets. His own engines were sufficient to quickly nudge the smaller asteroids into configurations of all sorts: lines, squares, circles. He would also get them spinning for additional effect. Some of his configurations would not last very long, but his intentions were occasionally visible for surprising periods of time. It all depended on the precision of his calculations. One of them seemed to be nearly perfect. Whenever he would chance by it, and he made sure not to miss it for very long, he would marvel at seven rows of eighteen spinning asteroids of nearly the same size wheeling gently around a large purple planet. His mates would tease him a bit about his playfulness, but he did not mind the teasing one single bit. “It will be recognizable as an artificial configuration for about a million revolutions around the planet,” Tlön grinned, “but then it will fall apart rather quickly when it gets closer to one of the planet’s moons.”