If I could emphasize one thing I said in this interview, it would be the importance of cofounders.  More of the interview dealt with that topic than it seems from these notes.  That's what someone thinking of starting a startup should be thinking most about, not the idea.<p>I talked afterward to a guy who wanted to apply to YC, but didn't have a cofounder.  I suggested he just apply 6 months later, and spend the intervening time finding a good cofounder.  He didn't want to hear it. For some reason founders seem to think that the set of potential cofounders is a given they can't change.  But surely if you made finding a cofounder your main priority and worked at it like a job for 6 months, you could find people.