Just did the Y Combinator interview: here are my notes
I get the impression from reading stuff like this, there have been several I have read, that for some people start ups are a fashion or a "thing to do".  I find this very strange as though some people have money and time to burn without the stresses of daily life of things like a demanding job or children.To me a startup makes amazing sense when you have an original disruptive idea and the passion to unload all your time and energy into the spirit of that idea knowing you will probably fail.  That is the anti-thesis of a fashion.