The Bitcoin daily level has rebounded back to the vicinity of the downward trend line, with bulls patiently waiting for a breakout. Its short-term performance indicates a breakout around 40,000, while a weakness may prompt a reduction in positions for risk avoidance. The four-hour chart shows a strong bullish trend, with resistance near 40,000. The 15-minute chart has already broken through yesterday's volatile range, and bears need to be cautious. Operational Logic: Bears can attempt to short near the one-hour high of 83,500, as this position may attract many short sellers, betting on a double top. Set a stop loss at 84,000 with a small position; bulls should not have too large of a position at the head of the bullish trend. If the price breaks down to 82,000, consider increasing the position appropriately. Bulls should reduce positions near 83,588-84,000 based on the situation, and any increase in positions should wait for a breakout and retest before considering.