I may have asked this before, if so I've forgotten the answer and I apologise. Is there a reason the floors are cyclical in terms of inhabitant social strata rather than layered? That is does anyone know why it goes blue collar, corporate offices, middle class, blue collar, corporate offices, middle class housing, mages, executive, schooling, executive housing, luxury housing. Rather than say blue collar, corporate offices, schooling, middle class, mages, luxury housing, executive housing? It just seems a little odd to me that you can have a blue collar worker living hundreds of floors up from the middle class housing with better views and quicker access to schools.
As for Arcologies in general how stable are they that is if you transplanted one to an earthquake prone country would it be safe or would the sheer size make them more vulnerable to quakes?