On the other hand you can say that coding is a complex task, so having any kind of barrier between you and your code is important. It's like, say, editing in a

On the other hand you can say that coding is a complex task, so having any kind of barrier between you and your code is important. It's like, say, editing in a window which is, say, 8 lines high. Sure, most of the time you are only looking at 8 lines at a time, and the time spent switching back and forth when you need more is not the limiting factor. Still, I think this would make you a lot less efficient. The point of competent typing, and good text editors, is that they reduce the gap between your mind and the code. It's not just about speed. The latency analogy of pgt is a pretty good one.