I started to write a new editor not too long ago and had it about half done after two days.
Bill JoyThere are a couple of people in the world who can really program in C or FØRTRAN. They write more code in less time than it takes for other programmers. Most programmers aren't that good. The problem is that those few programmers who crank out code aren't interested in maintaining it.
Bill JoyIf you stay up late and you have another hour of work to do, you can just stay up another hour later without running into a wall and having to stop. Whereas it might take three or four hours if you start over, you might finish if you just work that extra hour. If you're a morning person, the day always intrudes a fixed amount of time in the future. So it's much less efficient. Which is why I think computer people tend to be night people - because a machine doesn't get sleepy.
Bill Joy