Philip Greenspun also talked about this. The problem is that some gigantic asshole will grasp onto that unsolved 20% and convince some other gigantic asshole in

Philip Greenspun also talked about this. The problem is that some gigantic asshole will grasp onto that unsolved 20% and convince some other gigantic asshole in charge of your destiny that the fact that you couldn't solve that other 20% means you're a moron. Speaking from experience.