Skip to Part 1 if you already know what NetHack is about. I found the narrative very entertaining to read.
> The answer is simple: Nethack does what computers do best - what computers were invented for. It hands you a symbolic representation of something, and lets you interact with it. The symbols are utterly mundane ... but the interaction is extraordinarily complicated.
is a beautiful idea, and had never occurred to me, despite my longterm adventures in Angband. (I'm also not quite sure that it's not pushing a metaphor too far, but it's lovely anyway.)