This is not hindsight. There are two reasons for the sharp drop. The first is that the data is good for US stocks, so it will be bad for the cryptocurrency market.
Second, Mentougou and the United States are transferring a lot of Bitcoin at this time, and Grayscale is dumping the market from time to time. The liquidity of the market is already very poor, and the slightest disturbance will cause a fall.
