Why is calligraphy becoming more and more incomprehensible? Where is the evaluation standard of calligraphy art today?

Calligraphy is no longer practical in the past, but an elegant art based on artistry. If you have no art training or are still in the primary stage, you must not know calligraphy or have a superficial understanding. For example, an illiterate person who has never been to school wants him to read a Dream of Red Mansions, and a person who has never studied vocal music wants him to listen to the bel canto, opera and aria of three tenors, such as a primary school student and calculus, such as a player who loves cows. . . . When it comes to evaluation criteria, calligraphy does not have such criteria as one plus one equals two. However, the more people study it, the more clearly they can judge it. The words written by laymen are not good at first sight, while the words written by experts are ugly at first sight, and they also have a very high artistic level. At first glance, insiders know the high level, deep knowledge and wide attainments.