GRC (Global Reserve Currency) Transition Year Predictions Using Zhang Tables of Multiple-to-One Extrapolation Formulas

In the past history of five hundred years, the GRC (global reserve currency) transferred five times. According to pervious and existing research, the GRC may transfer about once 100 years. The last GRCTY (global reserve currency transition year) is 1920, almost one century ago, the USA taking the place of Britain. Yet the USA taking the lead in the world now, many people may still believe that the next GRCTY will come or is coming soon. If that happens, a great change may occur on this planet. So, scientific predictions, as the whole and as a hot topic, may be, could be, and will be necessary for future measure and control (FMC) to some extent and in some sense. In this paper, we propose and use Zhang tables (ZT) of multiple-to-one extrapolation formulas (MTOEF) to predict the next (or say, coming) GRCTY. What is more, we use both forward and backward Zhang tables, and analyze the possible meaning behind some unexpected data as well as some strange phenomena (such as no suitable prediction about century 23). We also verify some of the regularities that we find. At last, we get the results that the next (or say, coming) GRCTY would be in between 2030 and 2040, together with the possible GRCTY afterward maybe 2115 or 2330. The results are tested to some extent and in some sense by some other convincing models in the Appendix of the paper.