He clearly has a sense of humor: http://news.ycombinator.net/item?id=35079 http://news.ycombinator.net/item?id=35079 I don't know where you get the 'serious'

He clearly has a sense of humor: http://news.ycombinator.net/item?id=35079 http://news.ycombinator.net/item?id=35079 I don't know where you get the 'serious' impression. The content on his website makes it seem like he's having a great time, most of the time. And you might notice that he edits out the negative stuff pretty fast, e.g. comments with angry interjections, or the deleted preface (available if you view source) for this: http://www.paulgraham.com/polls.html http://www.paulgraham.com/polls.html