After the prosperous period of "the rule of Taikang", the unprecedented powerful Western Jin Dynasty quickly went to extinction, the basic reason was the founding emperor Si Mayan at that time, because Sima Yan was also the grandson of Sima Yi and the son of Si Mazhao, and at the same time, because the Jin Dynasty was defeated by Si Mayan, Sima Jia mastered the biggest warrant at that time. Not only that, Cao Cao also coerced the emperor at that time to order all the courtiers to obey, but Sima Yi of Sima Jia was even more insidious than Cao Cao.

The second reason is that the people of the Western Jin Dynasty just experienced the war in the Three Kingdoms, and naturally cherished the hard-won peace and stability, which led the nobles of the Western Jin Dynasty to quickly enter a decadent life, so that the Western Jin Dynasty entered the so-called chaos of eight kings and five chaos in just a few decades. Under the domination of this phenomenon, the folk customs soon became different from the original folk customs, which indirectly led to the Han people's contempt for them for decades after the demise of the Western Jin Dynasty.

Not only that, but this may also be the reason why things that are too easy to get are not cherished. At that time, the emperor of the Jin Dynasty was also a fatuous and corrupt man. At that time, there were more than 3,000 harem beauties, but the number had reached tens of thousands.

Not only that, but he began to enjoy himself after he mastered the supreme power. Although he was diligent in management for a short time at first and took various measures to solve various problems, after creating the so-called rule of Taikang, he shifted his goal to pleasure.

It is conceivable that no matter how powerful a country is, it is doomed to failure if monarchs only carry out politics for a period of time instead of long-term rectification.