On April 8, Cai Lei, a financial columnist, said that according to data just released by the central bank, the scale of China's gold reserves has risen for four consecutive months. China's gold reserves at the end of March were 60.62 million ounces, an increase of 360,000 from February's 60.26 million ounces. Ounce (11.2 tons). Just before December of last year, the People’s Bank of China had not increased its holdings of gold for more than two years. Why did it suddenly increase its holdings for four consecutive months? In addition, last Tuesday, after nearly a year of bitcoin, a mysterious buyer suddenly appeared, buying 20,000 bitcoins. In addition, Saudi Arabia’s threat to abandon the US dollar settlement is not surprising, but on the one hand it can explain that the US dollar trade system maintained at a strong cost has not yet gained the final approval of more sovereign countries. Gold, bitcoin, and the dollar represent not a form of existence, but an endless pursuit of humanity for all kinds of eternal and changing. Understand these, the understanding of wealth and the situation, and the understanding of the cycle. Go deeper. We often use the most complex self-designed framework to explain a lot of changing things, seemingly infinite, but actually ignore the simplest underlying operating principles.