Mr. Si Tian

Si Tianjian, whose function is to observe astronomy and calculate the calendar, needs to know Yin and Yang Feng Shui. Just do your own thing. There was a man who, based on his family's secret technique, calculated that the royal family was about to run out of power and the world would rebel. He spoke out and remonstrated, hoping that the royal family would be careful, but unexpectedly offended the emperor's power and was sentenced to death. He used his secret skills to preserve his family's only son and his secret skills. He also left behind a family motto that the family's secret skills should not be revealed to others easily. Time has passed, and now there is only a single seedling left in this family. In this modern era of advanced technology, can this secret technique still work?