We don’t know about you, but to us there’s nothing worse that starting our day off reading about some wunderkind who’s accomplished more by the age of 21 than we have in our adult lives thus far. Seriously, do teenagers not even smoke pot anymore? Today the Sun profiles David Karp, an Upper West Sider who left behind a “normal childhood” and quit Bronx Science as a sophomore to work on UrbanBaby. Since cashing in on that company’s sale, Karp has founded several successful tech start-ups, including a new social-networking Website called Tumblr. It’s pretty cool, a combination of a blog and Facebook, which is perfect if you are a chronic exhibitionist like Karp’s investor Jacob Lodwick. “The VCs were ready to throw millions at us,” Karp tells the Sun, but of course, he’s all about the users. “Our focus is not selling it to Google in two years or flipping it,” Mr. Karp said. Hm. Yes, but David, are you happy on the inside? Oh … really? Are you sure?