Powell will speak at Jackson Hole tonight at 10 PM, possibly discussing the interest rate cut issue for September:

Old Powell himself has always believed that it is not appropriate to cut interest rates. Let's see what he specifically says tonight; if the conditions are right, we will enter the market, but if not, we will wait and see.

In line with Old Powell's subjective thinking, the chances of making a profit from shorting are somewhat higher. The midday rebound strategy for Bitcoin is that if we can't return to the cost, we should cut losses even if it means losing a few hundred points.