There’s another side to it. The too-stupid person will just run off and, without a second thought, do something wrong. The too-smart person will sit down and plan something right, without taking any action. A pragmatic programmer is sort of in-between; he knows making the wrong decision 1 out of 10 times doesn’t hurt the goal as bad as making only right decisions 5 out of 10 times, and making no decision at all the other 5 times.
Why Good Programmers Are Lazy and Dumb
by Philipp Lenssen