Why are there such big differences between two people with exactly the same date of birth?

Birth records the change of nature's magnetic field, and he can only say his own fate. But everyone's name, gender, parents, family and environment are different. There are various changes. The so-called environment refers to the synthesis of these things. The same car leaves the factory at the same time, but the roads are different, the drivers are different, and the fate is different. In ancient times, when Zhu Yuanzhang became emperor, he ordered the killing of all the people in the world with his eight characters. But then I found a beekeeper named Queen Bee. Use his horoscope. Only then did he know that this had nothing to do with the different fields of the eight characters. Will not deprive him of his throne. I won't kill it. Names in the Book of Changes can also be fatal, so can home feng shui. Face, palm and so on. In fact, there are too many differences between people with the same eight characters. So we can't generalize. And alive. There won't be two people with identical personalities in your circle of friends (except twins), so it's not easy to get through, and their circle of friends can't be exactly the same. You won't encounter anything that has nothing to do with you.