BTC did not plummet immediately, but fluctuated repeatedly, which can be judged as the dealer's arbitrage. The original bottom-picking strategy remains unchanged. At the short-term level, a narrow stop loss is placed to go long. Once this position is broken, it will plummet. If it does not plummet, it will be repeatedly fleeced above 57,000. The current known analysis is: before the introduction of the interest rate cut policy, the market funds are visibly in short supply. As long as BTC surges, it can be shorted. It is unlikely to break through 70,000; the dealer has no ability to pull the market and wants to keep the leeks and cut the leeks at the same time. It is nothing more than using various favorable false breakthroughs or a sudden pullback after a plunge. This kind of market is to open on which side has a higher cost-effectiveness, or open a grid to hang up arbitrage