This is the experience that the Chinese have summed up from history, and I believe it. And I think this is happening in the US now. According to China’s experience, the unite usually can continue hundreds of years. The US is now more than 200 years old, which is equivalent to the last years of a dynasty. The drawback of this political system appears. The so-called separation should not be simply a province. For example, the US once separated to the North and the South. Maybe the Democratic Party and the Republican Party will be separated in the future? Who knows. For China, the new dynasty is only 70 years old and has just begun. From a historical perspective, this is the best time. The remaining problems after the shuffle have been cleaned up, and the people are confident and do better. Of course, it is undeniable that there must be some disadvantages, but the disadvantages of this kind of society will only become apparent after a long period of time, perhaps a hundred years. Therefore, such things as division and union are built on the basis of hundred years.