"Passing a lot of classes" to me only means indoctrinated completely. No motivation to lie to people here is one scenerio.
I personally believe there is more land beyond tens or even hundreds of thousands of miles of vast ice plains, until you come upon another localized sun that melts the ice enough to expose more land, and moreland = more resourses which means mass migration leaving the very elite rich to actually fend for themselves and no one to control, but then again.... what do I know.