Not to mention that points near the edge are 50% less likely to be picked (or 75% less likely if they're near a corner). You can fix this by looping the space

Not to mention that points near the edge are 50% less likely to be picked (or 75% less likely if they're near a corner). You can fix this by looping the space around once you reach the edge but good luck expressing that in SQL. You could also fix it by putting them on a sphere I think, though picking a random point on a sphere is exactly the easiest thing to do.