Two things! Firstly, the Apocalypse World book has always felt weird to me, because it finishes out painting wild, speculative pictures of a vast space of possible play. This is actually a nice description of why that happens.
And secondly, it's interesting to compare Apocalypse World to other games, (In A Wicked Age is an obvious choice) and look both at the existence of concentric levels but more importantly at the direction of collapse and the impact that has on gameplay.