In a generation, the decline of science and technology is easy, and it takes more efforts to get back on the horse. The technology in the late Ming Dynasty was considerable, and even lasted until the early Qing Dynasty. In the middle of Ming Dynasty, science and technology was the biggest black hole, which began with the so-called Hongzhi Zhongxing.
During Hongzhi's reign, there were frequent floods, which almost shook the foundation of the country. However, this is not only a natural disaster, but also a man-made disaster. Evil Confucianism mistakes the country, and science and technology go backwards. Even the water conservancy projects in the agricultural system lack attention. A gentry is arrogant and willful, ignoring the overall situation for small profits and destroying water conservancy projects for more cultivated land. As a result, floods broke out and civilians lost their homes. The reason is the corruption of Korean literati and the ignorance of gentry. In short, the religious atmosphere prevails. Some people say that Confucianism is not a religion, but in fact Confucianism originated from religion. In the Zhou Dynasty, Confucianism was the real religion, and it was a great retrogression for Zhou to replace Shang itself. Because of Confucius, Confucianism was later improved by Confucius with the Central Plains culture, and it was integrated into a hundred schools of thought. This is Confucianism. Therefore, later Confucian scholars said: Heaven does not give birth to Zhong Ni, and eternity is like a long night. Because religion is the enemy of science and technology and the source of primitive ignorance, it is precisely because of the emergence of Confucius and Confucianism that a neutral buffer has been formed. However, the inferiority of Confucianism itself often happens occasionally in later generations, so it is inevitable that evil Confucianism will mistake the country. For example, during the Song and Ming Dynasties, Confucianism itself had two sides. Zhu Taizu once played a positive role, and then gradually deteriorated, and even promoted the country, until finally Lindong ruined the country. However, the Heaven and Earth Society in Chen Yonghua is also a Confucian organization, but its influence is extremely far-reaching. In the end, the tomb was dug for Manchu, which was caused by the suppression of science and technology. During the Zhengde period after Hongzhi and even in the early years of Jiajing, technology was not good, but Emperor Sejong Jiajing was still very successful, and technology was restored in Jiajing Dynasty. So it is not so much Hongzhi Zhongxing as Hongzhi Middle School, but Jiajing Zhongxing. Although Emperor Xianzong Sejong was not as good as Hongwu Yongle, he was definitely the emperor of the Ming Dynasty, and both of them were cured much more than Hong. But obviously, these two were not as obedient as Hongzhi, especially Emperor Sejong, who still manipulated and used Wang Zhi to suppress evil Confucianism. It is normal for Emperor Sejong to be directly overbearing and vilified. Not only the Emperor Sejong himself suffered from evil Confucianism, but also his ancestors were implicated. Emperor Sejong named Emperor Taizong Yongle Chengzu Temple, and then there were all kinds of rumors about the mystery of Emperor Yongle's biological mother, such as Mongols and Koreans. There are indications that all kinds of black materials about Yongle Emperor originated from Jiajing Dynasty.