Is it true that a person's standard of regular script determines the future level of calligraphy?

It can't be said that regular script determines anything, let alone future achievements. If you practice calligraphy for three or five years, regular script will look the same, but your handwriting will be different in ten years. In another ten years? Ancient calligraphy inscriptions are hard to say, but we can see changes from today's. I especially like to look after the teacher's handwriting. One day I visited a second-hand bookstall and bought an inscription in regular script he wrote about 30 years ago. When I got home, it was much worse than his current copybook. Then he didn't say anything about deciding what happened now. He is also constantly practicing and perfecting.

Everyone has his own strengths. Wang Xizhi's Preface to Lanting is regarded as the best running script in the world. I practice running script to write two posts: Lanting and Shengjiao. But I haven't heard of anyone practicing Wang Xizhi's handwriting. It's not that it hasn't been handed down. I bought the script of "Holy Book", including Huang Tingjing, Lun, Painting Praise, memorial tablet of filial daughter and application form. So many script posts are not few. But the practice of regular script in the world is basically nothing more than Yan Liu Ou Zhao. Otherwise, wouldn't the first running script in the world be a manuscript dedicated to the nephew? I'm not saying that the regular script of the book saint is not good, but people have been writing the regular script of the great calligrapher of the Tang Dynasty, which is certainly reasonable. Maybe what I said is a little off topic, but personally, regular script is definitely not decisive.

Calligraphy, don't feel mysterious, in fact, it is "technical work" in plain English. People are making progress, and so is your handwriting.