Society in "The Diamond Age" is dominated by a number of "phyles", also sometimes called "tribes", which are groups of people often distinguished by shared values, similar ethnic heritage, a common religion, or other cultural similarities. In the extremely globalized future depicted in the novel, these cultural divisions have largely supplanted the system of nation-states that divides the world today. Cities appear divided into sovereign enclaves affiliated or belonging to different phyles within a single metropolis. Most phyles depicted in the novel have a global scope of sovereignty, and maintain segregated enclaves in or near many cities throughout the world.