But I guess my biggest question has been this: In the event that we (any anyone else going through this process) don't get in, how hard should we spend thinking about that? And what I mean is, every time I've done something I spend some amount of time evaluating how it went and what I learned from it. In the case of YC, it's about the idea + founders, so if we didn't get in, I would need to spend some amount of time evaluating the idea + founders and deciding what it means.
That doesn't scare me, instead I think that's the most exciting part. To be incredibly self-critical is the only way to make great things. As much as we were writing our answers for those who will evaluate them, we were also writing them for ourselves.
Great post, makes me feel more optimistic about the entire ordeal.
Edit: meant winter 2012