Eight-character algorithm is summed up by ancient philosophers in China, which has its scientific side, but in the final analysis, it is an incomplete induction, and it is more accurate. I have studied the eight-character (or four-column) prediction for a period of time, and I believe it is reasonable, because its theoretical basis is the simple dialectical materialism in ancient China: the theory of Yin-Yang and Five Elements, which, like traditional Chinese medicine, still has vitality after thousands of years. This is a very profound knowledge, which is not easy to master.
In addition, I want to explain that birthdates is just a one-dimensional time coordinate; Three-dimensional space coordinates are complex and constantly changing. About 30,000 people are born every two hours in our country, which means that these 30,000 people have exactly the same eight characters. Will their fate be the same in the future? 80,000 people were killed in Wenchuan earthquake. How can their fates be so similar? So spatial coordinates seem to play a bigger role.