I don't care if this can be related to the current discussion or not, just wanna share it here. But let's hope the implied case can hold true.
Long ago I read a book in Chinese that offered a theory: All dynastic founders were capable men who gathered other strong, able men around them and led them wisely. After decades of war to overthrow the previous regime, and sometimes a century or more of warlordism, the new ruling elite and general population were war-weary, went about rebuilding and brought stability to the new dynasty. After some decades, the rulers, who could be sons, grandsons or great grandsons of the founder, had grown soft in the new prosperity. Invariably some crisis happened, could be power struggle from court intrigue, natural disasters or foreign invasions. If the new dynasty survived, it will stabilize and last for much longer. Otherwise it fell, and other strong men would rise to found another dynasty.
Above theory, called the "new dynasty bottleneck test", is said to be supported by the data from the few thousand years of Chinese history. For Qin, history tells us Li Shi and the eunuch Zhao Gao conspired to kill Yin Zheng's capable older son and put the useless second son in power, so that they could dominate him. For Sui, 2nd emperor is well known as a brutal mad tyrant. For Ming, the founder's son Zhu Di fought a civil war and wrested power from his nephew but he proved a capable ruler and the dynasty survived.
For the current dynasty, question is, was the Cultural Revolution the bottleneck test, or is it the current all-but-kinetic war from the global hegemon?
