 The most common error of a smart engineer is to optimize a thing that should not exist. And they say, well, how do we get, why would people do that? Well, everyone's been trained in high school and college that you've got to answer the question. Convergent logic. So you can't tell a professor your question is dumb. You'll get a bad grade. You have to answer the question. So everyone's basically, without knowing it, they've got a mental straitjacket on. They'll work on optimizing the thing that should simply not exist.