the key themes of this book are that everything that happens in the next four years has to do with those thirty daysthat girl who seemed a bit spacey and unstable the very first week was clearly anticipatable to drop out her second year ( as she did ) and the class divisions that existed in those thirty days were also those that would exist for all the remaining four years such that one graduate remembers four years of hiding out in his dorm room playing computer games and another had a black crack-addict girlfriend and quite possibly runs the risk of acute psychosis himself , because a cell phone is going off right now and its making it impossible to write .