The author, Trevor Casey, was born in 1943, on an old corroboree ground of the Wurrundjeri people, on the edge of a swamp in Emerald Hill, now called South Melbourne, near the Yarra River in Victoria, Australia. He is a physicist who worked as a meteorologist and was involved with the development of the seasonal forecasting system used by the Australian Bureau of Meteorology, which successfully predicted the run of droughts through the 1990’s and early 2000’s. He has applied his background in dynamical meteorology and time-series analysis to stock market prediction, and developed a theory of discrete integer behaviour to explain the principles underlying the practice of time and price squaring used by proponents of Gann theory.