No kidding. When one looks at everything he's wrote from scratch thus far, it is more than very impressive. If not for the skills, at least for the dedication. I get bored with projects 1/10th of the size.
Programmers don't realize how much they lose by constantly chasing the latest language, the latest frameworks, the latest new abstractions of software development that require so much past work to be thrown away. Terry's volume of output is available to anyone that's willing to just whittle away at one thing, in small pieces, for more than a few years.
(I'm not diminishing Terry's volume of work here, but encouraging other programmers to consider adopting a nice, slow side project.)
