Why can people's fate be calculated by eight characters (birth time)

Everything has laws, and the concrete embodiment of laws in human beings is fate, so fate is innate. "Man is an organism that is constantly changing and developing in the contradictory movement of heredity and variation, based on qi and blood substances, with parents' genetic genes as the model and environment as the variation condition (see, Lei et al.," New Ideas and Approaches of Theoretical Research of Traditional Chinese Medicine "200 1), which shows that although the basic physiological substance that constitutes the human body is qi and blood, the existing form of specific functional content of qi and blood and its adaptability to the natural environment are not immutable. On this basis, Liu Yuzhen and Lei clearly pointed out in their elaboration of its formation mechanism in the book Yin-Yang System Theory: "The contradictory movement of heredity and variation is the internal basis for the formation of human biological rhythm, and natural selection of survival of the fittest is the necessary condition for the formation of human biological rhythm, time induction and time-dominated rhythm." This is why the time of birth can reflect people's fate. For details, please refer to the human biological rhythm.