The weekly chart shows a bearish divergence in MACD for 2021, with a projected decline of over 50%. The main force has already distributed multiple times in the 106000-110000 area. The current rebound is a B wave rebound, reaching around 106000, followed by a larger C wave decline. The shorting point for BTC can be at 105900, and for ETH it can be at 2544. Currently, the strategy is to invest at high points for shorting. There will be a significant drop this month, expected in the middle to late part of the month.