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Published online by Cambridge University Press: 07 May 2025
Major trends that are gradually changing the fortunes of nations and reshaping world history are not easy to identify. There are three key reasons for this. First, many important trends unfold so insidiously that they are recognized only ex post once the developments reach a breaking point and a long-term trend ends in a stunning discontinuity. Second, we cannot foresee which trends will become so embedded as to be seemingly immune to external forces and which ones will suddenly veer away from predictable lines. Third, what follows afterward is often equally unpredictable: the beginning of a new long-lasting trend or a prolonged oscillation, a further intensification or an irreversible weakening.