Internal Cause is King
Consider Character, Setting, and Situation — and now consider what happens to them, over time. In Simulationist play, cause is the key, the imagined cosmos in action. The way these elements tie together, as well as how they're Colored, are intended to produce «genre» in the general sense of the term, especially since the meaning or point is supposed to emerge without extra attention. It's a tall order: the relationship is supposed to turn out a certain way or set of ways, since what goes on «ought» to go on, based on internal logic instead of intrusive agenda. Since real people decide when to roll, as well as any number of other contextual details, they can take this spec a certain distance. However, the right sort of meaning or point then is expected to emerge from System outcomes, in application.