I think a lot of people really miss the point of my ratings. I don't think they are perfect. I don't think they are close to perfect and I always have 300 or 400 ideas swimming around in my head on how to improve them. The thing that is amazing to me, however, is simply this. It shows how powerful of a tool Statistics is. Sports writers and fans spend so much time analyzing this and they don't consistently come out any better than the computer. I'm not saying the computer beats everyone in the world, but let's say we had 1000 people try and pick every game (let's be mean and say those people can't look at any sort of computer ratings, they can just watch game films, see final scores, see rosters, see statistics, see injury reports). The computer sees NONE of that stuff. All the computer gets is a list of final scores. The computer doesn't seem to pick any worse than anyone else. It doesn't win every week, but it usually does pretty well and is near the top of the pack. Isn't that amazing to people? I think it is. All that information just seems to get gleaned out in the final scores somehow.
This whole thing started as an exercise to show my students the power of Statistics, but I still am amazed by just how much all the percentages come out.
Here's a crazy thing, if the computer got them all right one week, I'd think that was odd. I actually can calculate before the games are played what the computer's record will be on wins and losses, and while I have no idea which games it will miss, it almost always comes within a game or two of picking exactly what I anticipated.