make his case for deflation and the key factors that supported it, Prechter said: Controversy Many controversies surround the concept of the Grand Supercycle: Stock transactions did not occur during the first years of the United States and price data is thus not available. The notion of the Grand Supercycle was thus implied by R. N. Elliott by linking together gold prices, British stock market prices, and later U.S. stock market prices, as the U.S. economy surpassed the U.K. It is not clear that this methodology is scientifically robust. The hypothesized Grand Supercycle is conjectured to span more time than a human life, which some say means it cannot exist. Followers of Saeculum Theory take this view and align instead around a belief that defined sequences of generations relearn approximately the same lessons as their forebears. Similar ideas can be found in the Bible. The Saeculum might map to the Kondratiev cycle. The idea of a Grand Supercycle bear market may be interpreted to suggest that mankind will never learn from its past mistakes, or become self-aware in a macro-economic sense. The historical study presented in David Hackett Fischer's The Great Wave (Oxford University Press, 1999), however, presents a meticulously argued case that the periodic crises in human history are becoming steadily less volatile, which suggests that some kind of species-wide learning is occurring. See also Business cycle David Hackett Fischer Economic cycles Market trends Notes References The Great Wave: Price Revolutions and the Rhythm of History (2000) Korotayev, Andrey V., & Tsirel, Sergey V.(2010). A Spectral Analysis of World GDP Dynamics: Kondratieff Waves, Kuznets Swings, Juglar and Kitchin Cycles in Global Economic Development, and the 2008–2009 Economic Crisis. Structure and Dynamics. Vol.4. #1. P.3-57. Technical analysis Market trends Financial markets Business cycle Pseudoscience Pseudohistory