What does hometown fortune-telling blindness mean?

Why are some blind people very accurate in fortune telling?

The folk fortune-telling algorithm for the blind is still relatively accurate. They have a door leading to the teacher. It is said that there is a valley religion in Zhangjiajie, where the classics come from. Of course, the blind don't need books to teach their disciples, but take them to recite songs. They get up in the middle of the night and recite it every night. After a hundred days, I took my disciples out to practice and gave them some advice.

The most influential traditional fortune-telling in China is four-column fortune-telling, that is, eight-character fortune-telling. Although the ancient letters of life are numerous, it seems that most people will find it very laborious. It's not that modern people don't understand it, but that those books don't make the problem clear at all. Unlike western science, it has a complete argumentation system, but it seems to be fragmented.

Some authoritative expositions about numerology are even more confusing, and as a result, many people who study numerology have become nerds one by one. And people who know a little bit about it think of finding a credible algorithm.