Last week at Disrupt, Chris Dixon did a version of Founder Stories onstage with Quora founder Charlie Cheever . We learned that Quora is not looking to sell , but we also learned a lot more. For instance, what convinced Cheever to quit Facebook with co-founder Adam D'Angelo was that tried to "imagine a world where I knew everything that I wanted to know, as long as someone else in the world knew it." And that's what Quora wants to build. It's a pretty outrageous goal, which is what makes the startup so interesting.