Why did Sima Yan make such a stupid Sima Zhong a prince?

In the first year of Taixi (290), after the death of Sima Yan, Emperor Wu of Jin Dynasty, his son Sima Zhong succeeded him as Emperor Jinhui. Jin Huidi is a typical bad king in the history of China. He didn't like reading since he was a child. He only knows how to eat, drink and be merry all day, and doesn't do anything serious. Sima Yan was very worried about this, fearing that Sima Zhong would lose the family business started by his ancestors. On one occasion, in order to test Sima Zhong's thinking ability, Sima Yan specially asked him several questions and gave him three days to hand in his papers. Sima Zhong didn't know how to answer the question. His wife Jia Nanfeng is a very clever person. Seeing this, she immediately invited several learned old gentlemen to solve problems for Sima Zhong. After reading the answer sheet, Sima Yan felt that his son's thinking was still very clear, and he was relieved. However, when Sima Yan died and Sima Zhong ascended the throne, he made many jokes when he was asked to make his own decision.

One summer, Huidi and his entourage went to Hualin Garden to play. They walked to a pond and heard frogs cooing inside. Hui Di thought it was strange, so he asked his followers whether these things were official or private. The waiter said: "What is the official family name, it is the official family; If it is called privately, it is private. "

Another year of famine, people have no food, and people starve to death everywhere. Someone reported this situation to Jin Huidi, but Jin Huidi told reporters: There is no food to eat, so why don't they eat meat porridge? "Report heard, in distress situation, the victims can't even eat rice, where is the meat porridge? This shows how stupid Jin Huidi is. No wonder Sima Lun, the king of Zhao, usurped the throne in the Eight Kings Rebellion. On the night of the first year of Guangxi (65438+3071October 8th)1month17th, Emperor Sima Zhong of the Jin Dynasty died in Xianyang Hall of Chang 'an because he ate Sima Yue's poisonous cakes. At the age of 48, he was buried in Sun Mausoleum, and his younger brother Jin Huaidi Sima Chi (284-3 13) ascended the throne and changed to Yongjia.