Observing the price history of BTC, I found a precursor to the bear flag that cannot be ignored. The monthly chart is a typical 123 reversal trend. Once it breaks through the potential point 3, it will fall below $ 3,000. This is not groundless. The Dow Jones Index (DJIA) also took this pattern from 2003 to 2009, and the results fell sharply into a bear market. History is very familiar, but it will not be repeated easily. In 2019, when BTC rose above US $ 13,000, the transaction volume compared with 2017 US $ 20,000 was greatly reduced. At the same time, the monthly MACD is already a dead fork, which is a precursor to the big bear market. Good luck!