I have a vague memory of reading an article by him shortly after he got the investment from Jeff Bezos when he spoke in terms of being "retired" (sadly ungoogleable now because "david heinmeyer hansson retired" just gives lots of hits for motor-racing). Of course things change, and he is definitely working now, although his working life seems to consist of very well paid, powerful, interesting and part-time positions, so I think the point stands :)