I think Web N isn't about the actual tech being used, it's about the way the tech is being used and how it interacts with the real world and our society. Web 1 was HTML informational web sites, maybe some chat rooms and games here and there but not much affect on the real world. Web 2 was/is the "web app" where you can transact various business online, and group into communities and stuff and which is well integrated into our lives. Web 3, I think, is currently being formed and I have no idea what it is, but whomever can figure that out will be the first nrillionaire or whatever. The tech itself is just all the same if/else statements in a different order.