I don't think this is the ideal lineup for a day of talks about How to Start a Startup in the fall of 2014. The past few years have been particularly brutal for starting a startup. Mostly because there are so many others doing the same thing, and most of them are vying for the same funding dollars you're vying for.
Thousands upon thousands of people are trying and have tried, and most have failed, and all have stories to tell. That is the norm, that is the most likely outcome: failure. Instead, you'll hear from billionaires and superachievers and tech celebrities none of whom have been hungry, driven with a vision, struggling to build something new, fighting the good fight, any time recently. They're disconnected, imho.
Go ahead and downvote, I know, it's YC heresy, but so be it.