Interesting .... thanks for the link. Though, in the context of that report, a 'new business' need consume only 15 or more hours per week to 'count'. Such low-intensity enterprises aren't really what the YC (or VC) crowd is interested in (whatever their other virtues), so I think there's a bit of an apples-and-oranges problem with the 550K/mo number, even assuming there are no deeper statistical problems with the report.