I'd like to see someone challenge that notion. I mean, that's certainly a known and reliable model for multiplayer play, but we see single-player games like Spelunky where familiarity means being able to recognize how common elements interact and construct your strategy on the fly, as opposed to a Super Mario where you're just memorizing the layout. Has anyone seriously attempted that in a multiplayer game? Obviously there's a lot of ways it could fail, but I feel like it could be spectacular if done well.