Entropy and the trajectory of world politics: why polarity has become less meaningful

The random and indeterminate nature of the current unipolar world suggests a condition of increasing entropy. There are two reasons for this claim. First, relative capability advantages under unipolarity do not translate as easily as they once did into power and influence over others. Second, systemic constraint is a property that limits actors' freedom of action by imposing costs and benefits on certain kinds of actions. Unlike past multipolar and bipolar systems, the current unipolar system exerts only weak, if any, systemic constraints on the unipolar power and all other actors as well. Thus, polarity has become a largely meaningless concept. Today, system process rather than structure best explains international politics, and this process is one of entropy. Finally, I suggest two pathways from unipolarity to a more balanced system: one is fairly consistent with standard balance-of-power realism but adds an ideational component; the other restores equilibrium by means of entropy.     

The future is uncertain and the end is always near

The standard view of contemporary unipolar politics is that systemic constraints impede the translation of American power capabilities into influence over security outcomes, rendering the United States (US) much less capable than its material capabilities imply. Challenging this logic, William Wohlforth and Stephen Brooks argue that systemic constraints under unipolarity are largely inoperative with respect to the security policies of the unipolar power. Indeed, the US is uniquely positioned in today's world to convert its enormous capability advantages into influence and usable power. While World out of balance is a masterwork of logical and rigorous argumentation, Brooks and Wohlforth, in their exclusive focus on the hegemon and its policies, do not attempt to offer a general theory of unipolarity. Thus, they do not consider the possibility that unipolarity does not constrain any actors or the issue of system change. This essay advances two routes out of unipolarity: (1) a ‘delegitimation’ phase followed by regular balancing behavior and (2) a sudden and dramatic shift from unipolarity to multipolarity brought on by an unforeseen US collapse.