Before and after the halving of Bitcoin, major Bitcoin investors will adopt the method of up and down fluctuations, sharp rises and plummets, to reduce the chips for building positions in the bull market and increase the chips before the bull market trend is clear. The average position building cost of mainstream Wall Street institutions entering this year is higher than US$28,000. It is possible that there will be a surge around the Chinese Spring Festival. Then spring begins in the United States, consumption declines significantly, inflation continues, and in conjunction with macroeconomic announcements of another interest rate hike or cut, institutions will deliberately take advantage of the small accidents in the U.S. economy to drive down the price of Bitcoin. Before and after the halving, there was another wave of shock and decline, maybe a sharp drop that scared retail investors to death, but the bottom range was visually estimated to be between US$28,000 and US$35,000, or even lower, but not lower than US$22,000. This is the cooperation of behavioral economics and US macroeconomics. Mainstream Wall Street institutions have begun to invest in Bitcoin. They do not engage in mischief before the bull market starts, harvest retail investors, and collect more chips. This is contrary to the bloodthirsty nature of hedge funds. Their toolbox is vast, their tools for bullish news and their ability to influence the market are unparalleled. Retail investors in the bull market are the real fat leeks. Be careful. These trading experiences are all proven by my actual use of real money. The above ups and downs may not have happened, but we should be prepared for danger. What if it happens? It is highly likely to happen. You have to be mentally prepared when encountering someone.