In Max Brooks' "World War Z: An Oral History of the Zombie War," the narrative reflects on the nature of humanity and the likelihood of recurring selfish behavior in future generations. The author suggests that once society returns to a state of normalcy, people may revert to their old ways of being self-centered and unkind.

This notion raises questions about the lessons learned from hardship. Even after experiencing significant trauma, like a zombie apocalypse, the tendency towards selfishness and narrow-mindedness might prevail, indicating a cyclical pattern in human behavior that is hard to break.