Evolution of eight-character fortune telling

Li Shishi in the Tang Dynasty initiated the tripartite confrontation and was the greatest teacher in history. Master Xu Ziping in Song Dynasty perfected the basic models of time column and four-column prediction. Later, some people invented the Universiade and the Universiade one after another (but the method of starting was wrong). The so-called sub-leveling technique is actually a prediction model for the increase of four columns. Only from the invention of the four-column sun law and the moon law can such a prediction model be broken, and the eight-character prediction model, especially the method, be truly improved. The four-column sun law and the moon law taught in the textbook "Human Biological Rhythm" lead the trend of prediction science!