A friend of mine attended last year. He described it as "the most socially awkward people you've ever met telling you how to be less socially awkward".
Some links on the relevance of rationality to entrepreneurship:<p><a href="http://paulgraham.com/word.html" rel="nofollow">http://paulgraham.com/word.html</a> (see the note at the end especially)<p><a href="http://news.ycombinator.com/item?id=3795517" rel="nofollow">http://news.ycombinator.com/item?id=3795517</a>