Please answer a few questions about the blog here. If you prefer to listen rather than read, this blog is available as a podcast here. Or if you want to listen to just this post: Or download the MP3 Imagine there’s an urn. Inside of the urn are balls of various shades. You can play a game by drawing these balls out of the urn. Drawing a white ball is tremendously beneficial. Off-white balls are almost as good but carry a few downsides as well. There are also some gray balls and the darker the gray the more downsides it carries. However, if you ever draw a pure black ball then the game is over, and you lose.