The Null Device

Donald Knuth interview

InformIT has an interview with Donald Knuth; he's skeptical about multicore processors, unit testing and reusable code, doesn't like the idea of eXtreme Programming™, and has more or less conceded that literate programming is unlikely to become mainstream any time soon, whilst still believing that it is a superior way to write code:
In my experience, software created with literate programming has turned out to be significantly better than software developed in more traditional ways. Yet ordinary software is usually okay—I’d give it a grade of C (or maybe C++), but not F; hence, the traditional methods stay with us. Since they’re understood by a vast community of programmers, most people have no big incentive to change, just as I’m not motivated to learn Esperanto even though it might be preferable to English and German and French and Russian (if everybody switched).
Jon Bentley probably hit the nail on the head when he once was asked why literate programming hasn’t taken the whole world by storm. He observed that a small percentage of the world’s population is good at programming, and a small percentage is good at writing; apparently I am asking everybody to be in both subsets.
With the caveat that there’s no reason anybody should care about the opinions of a computer scientist/mathematician like me regarding software development, let me just say that almost everything I’ve ever heard associated with the term "extreme programming" sounds like exactly the wrong way to go...with one exception. The exception is the idea of working in teams and reading each other’s code. That idea is crucial, and it might even mask out all the terrible aspects of extreme programming that alarm me.

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