I'm kind of not so surprised there are 19 olds in PyPy team. This is a project that requires idealism and enthousiasm: "let's build python in python, compile to everything possible, and make it faster than cpython". Contrast this to the more pragmatic approach of unladen swallow. I envy this guy even now!

He's definitely working on cooler projects than I was when I was 19, but I dunno if he's more productive. When I was 19, we took a dot-com from conception to launch in 1.5 months, lost our funding and shut it down 2 months later, then I got folded into the parent company (a VC-funded startup) for the remainder of the year and went through about 4 different business plans.

It's the 10 years since then (and particularly what I did - or rather didn't do - in college) that makes me depressed. :-/

I am a dimmed witted 19 years old compared to this guy. :(

I wish I spend my childhood learning programming and all sort of cool stuff.