Because the same thing is repeated over and over again.
The dynastic cycle is the belief that the rise and fall of dynasties is controlled by Heaven (God).
The Government has embodied the dynastic cycle negating its destructivness by placing it under the law.
The premise of this question is based upon the 60 year cycle of the Chinese year recording system,Ganzhi. In the long history of China,dynasties rose,dynasties fell.And there is no big difference between two consecutive dynasties.So people saw no changes and they thought the world was just cycling. The ancient history of China was far from science and did not establish what a modern historical science would constitute.
The dynastic cycle is a political theory in the history of China. The theory states that every dynasty goes through a rise and fall and a cycle culture.
The rise and fall of Chinese dynasties is referred to as the "dynastic cycle." This concept describes the pattern where a new dynasty emerges, often bringing prosperity and stability, followed by a period of decline due to corruption, mismanagement, or natural disasters. Eventually, this decline leads to the dynasty's downfall and the emergence of a new dynasty, thus continuing the cycle. This framework has been a key aspect of Chinese historiography.
china
A person of great ability (or sometimes great luck) can create a dynasty which can last for a long time as long as the various successors have sufficient ability, but once you get a dynastic heir who is particularly incompetent, the dynasty will fall.
The water cycle is also called the hydro-logic cycle.
it is called a cycle because it is a continuous process.
"Dynastic cycle" is a Chinese political theory. By definition, it is the name for the cycle of the rise and fall of dynasties.
Another name for the water cycle is the hydrologic cycle.
It is called calvin cycle. It is called dark reaction too