Original by @liam48D. About two months ago I predicted that his project was just graphing the distance to the edge of the screen in each direction. I graphed it radially, and it looks like it isn't... It turns out to be graphing the SQUARE of the distance to the edge of the screen. Click the button to switch between the original (not using sqrt) and the corrected method (using sqrt). It's just taking the square root of the probability densities. I can't figure out exactly why this is happening, but it makes sense. It's running in two dimensions. With the sqrt correction, we can still see some pseudorandom artifacts... There appears to be a slight preference for pointing straight down.