The only qualification that you don't meet is confidence! If you say you can't, then you won't.
by "don't qualify," i mean i'm not really into the game the same way as the companies ycombinator seems to fund. for example, i'm not that excited about writing web apps, it just doesn't appeal to me. i think there are important sectors that could benefit from a bunch of startups that paul has completely written off, because he thinks it's less lucrative, i guess. well, i'm willing to take a LOT less money to do something i'm actually interested in, rather than learning ruby on rails, say.
this is paul's world. i like reading about the energy and creativity involved in web startups. i personally think that narrowing the field to just web startups is short-sighted, but that's not my call to make, certainly not here.
Interestingly, those also seem to be some of the higher profile projects.
i'm personally more drawn to "real" software that runs on desktops and servers. web stuff is nice, but it doesn't fit the way i think as a programmer.