I know he's a super-intelligent and quick-thinking guy, but it seems humanly impossible to tweet as prolifically as he does, given the type of busy schedule I assume he has.<p>Occam's Razor makes me think he must have an entire team of ghostwriters who know him well and come up with a long list of smart tweet-length things that he would say, and then he publishes the ones he likes.<p>I've heard that's what other "social media mavens" like Guy Kawasaki and George Takei do, but I was wondering if there's anyone here who's "in the know" who could shed light on whether that's the case for Marc Andreessen as well.<p>Also, what do you think of this practice of ghost-tweeting? Does it feel inauthentic, or should it not matter as long as the content is interesting and fully endorsed by the person under whose name it's being published?