On the four-hour chart, Bitcoin relies on the middle band for support, showing a strong upward push, breaking through the upper band with only a brief consolidation before rising again, successfully surpassing the 73,000 level, with short-term bullish momentum abundant. Currently, the pullback is shallow, with no obvious reversal signals. Intraday, focus first on the continuation of the rebound; after the price tests the resistance level, consider short positions at the appropriate opportunity.