Bray says don't forget about concurrency...
Tim Bray weighs in on the JavaSchools thing:
Recursion is mildly hard. Closures and continuations are hard. Concurrency is very hard.
I feel this is one of my weakpoints, but so far I haven’t had any real need to dive into any serious concurrent programming. I’m thinking sometime this year I’ll just have to get this and maybe this and dive in.
As another blogger points out, Joel is really just talking about different forms of indirection. Who cares about the tools uses to teach the concept?
Also, you gotta love the fact that Dion calls out Joel for for “whipping out crappy VB programs”. I haven’t used FogBugz personally, but its always a good time to bash VB.