And, of course, they were wrong (and had they actually talked to some of the girls, they would have known that). I met one young woman who is a CompSci major and has built and sold a Facebook app. I'd give good odds that she'll out-hack and out-earn those two fellows by an order of magnitude in her lifetime. It's a small sample size, and I didn't meet any other women that I didn't previously know from YC, but 100% of the women (er, woman) I met at Startup School were hackers.