the karmic debt had piled up , the social obligations , never to be understood by outsiders , had reached a breaking point , and the class , having been better than normal up to tuesday , swiftly reverted to less than normal by thursday , and sometimes groups of the students could be seen ; other classes had jelled , but 2/1 was now focused on outside possibilities , even as a substructure evolved around barbiedoll ; even as social noder made her way through class after class .