This program randomly generates some dots, and then keeps moving the dots away from each other until each dot is greater than a certain distance away from its neighbors. Press the space bar to show/hide the variables: number of clones = the number of dots distance threshold = how far away, at least, it wants each dot to be away from each other pen = whether the dots leave trails
Works best in Turbo Mode (shift-click on the flag button). If you make the distance threshold too high, it will never stop — it's trying to make the dots farther apart than they can actually be given the finite area. The default values (50 clones, threshold 67) always stops eventually.