"What if you quit your job to start a startup that fails, and you can't find another? Good hackers can always get some kind of job. It might not be your dream job, but you're not going to starve."
Hmm, isn't that kind of a low bar? I worry that I'll be 40 before I know it, with no savings to show for my years of work. Isn't opportunity cost a concern?
Perhaps PG really is writing for the young.