This document discusses the limits of predictability in strategy and war due to human and societal factors. It argues that art, or the unpredictable aspects of humanity, cannot be explained by science alone. The document then examines Clausewitz's trinity of the people, chance, and policy to show how irrational human tendencies, the role of chance, and imperfect government policy limit predictability. It also discusses how the complexity of different societies and cultures interacting on the international stage makes developing a predictable grand strategy impossible. The document concludes that while attempting prediction and developing strategies is important, the influence of unpredictable human and societal elements means outcomes can never be fully known in advance.