WRCT (World Reserve Currency Transition) Predicting via ASF (Addition-Subtraction Frequency) Algorithms with Zhang Time Intervals of WRCT Given

According to Ferreira, Dalio, and other scholars, there have been five transitions of world reserve currency in the past 500 years. World reserve currency transition (WRCT) is extremely important to the world economy and the economic decision-making in each country. In this paper, as a hot topic of future measure, we use the addition-subtraction frequency (ASF) method, i.e., ASF algorithms with 3 inputs and 5 inputs, also termed Weng-Zhang algorithmic (WZA) method, which are based on the commensurability method, to make predictions about the potential WRCT year or its time interval (or even many ones). Besides, we show the relative validity and accuracy of ASF algorithms through consistency analysis. Finally, we make the relatively reasonable predictions. Simply, about this round (i.e., this coming round) WRCT before 2031, 2031 is of its highest possibility, and 2026 is of its second highest possibility, within Zhang time interval abbreviated as ZTI 1991–2031 (named after the principal investigator of the research, also allowing other scholars to put forward their different time intervals via other methods), in addition to next round ZTI 2086–2121 (with 2111 being of its highest possibility) and even further round ZTI 2181–2206 of WRCT.