What fortune-telling industries are there in Korea?

Why is it inaccurate to tell fortune with the Book of Changes?

The Book of Changes has been regarded as a book of divination and fortune-telling since ancient times. Qin Shihuang burned books to bury Confucianism. The Book of Changes escaped because it was listed as a fortune-telling book, so it was not burned. For thousands of years, the Book of Changes has spawned a huge fortune-telling industry. Countless blind people, disabled people, or Jianghu tourists use it to tell fortune and predict the good and bad fortune in the future. People are devout, and let fortune-tellers who have little knowledge of the Book of Changes talk nonsense. Although many people know in their hearts that the Book of Changes is not accurate in fortune telling, they still hope to know their future through the nonsense of fortune tellers. The first person who opposed divination in the Book of Changes was Jiang Ziya. It is said that when the Zhou Dynasty was cut, divination was used. As a result, if the battle with Zhou was fierce, Jiang Ziya stood up and said, why do you believe in these turtle shell grass sticks? He firmly supported King Wu to act according to the established policies and finally won the war. This example shows that fortune telling by the Book of Changes is basically inaccurate. Then why not use the Book of Changes to tell fortune? It turns out that the Book of Changes is not a fortune-telling book at all, but a superficial phenomenon. Through this superficial phenomenon, we realize that reflecting the relationship between the universe and life is a philosophical reflection on the life picture of the ancients. Its sixty-four hexagrams, including more that can be interpreted infinitely with these hexagrams, all come from their understanding of nature, society and even life. Sixty-four hexagrams are sixty-four scenarios and some ancient short plays, which contain incisive philosophy. In other words, the Book of Changes comprehensively and abstractly summarizes the world that people can see. If people want to use these summarized principles to explain the world, it is scientific. If you only use one of the hexagrams or one of them to explain your future, it is as possible as winning the lottery. If you want to explain your future in detail with the Book of Changes, it's like you have to "calculate" them all. Because of this, since Confucius, no one who can really study the Book of Changes with a scientific attitude believes that divination is accurate. Confucius emphasized "no occupation", and later Wang Fuzhi directly said that "those who are good and easy do not occupy".