Well, I mean "story" in only the loosest sense here. I'm including, eg, WoW style quests in that rubric -- indeed, that's the main thing I'm referring to here, so that one can write a halfway decent MMORPG inside this thing. I don't necessarily mean story in the deep and complex sense (which I think *will* emerge if you build an open system that permits the simpler stuff, but I'm content to let them be an emergent behavior)...