On topic, have you read Made to Stick? It’s an excellent book that is sort of like The Tipping Point, only it provides analysis of what makes the examples successful instead of just give a series of amusing anecdotes. It talks about “The Curse of Knowledge”, which is how once you know something it is extremely difficult to abstract back to before you knew. People who don’t know anything about a topic have amazing perspectives. They don’t know what’s impossible (nothing!) and they don’t make assumptions about what’s easy (nothing!).