At present, Bitcoin will not fall below 60,000 quickly. Patience is the key to life. Let's predict the upper limit of Bitcoin. Above 65,000 is the entry point for the pin. It is OK to short it with the short-term support level. Distinguish between effective pull-ups and pin-ups. Below 65,000 is quite reasonable. The short-term support level is 63,000-63,400. Above 63,000, the editor still chooses to short Bitcoin. What position is shorted? For large fluctuations, use an additional short order. There must be a tolerance rate. The pressure level is 64,500-65,000-65,800-64,000. 1-3-3-3 additional short orders. The quilt is increased in proportion. It is OK to reduce the position when it is profitable. The pull-up is low-priced chips. Control the price of liquidation. Add positions at key points. This kind of large fluctuation is very easy to operate.