#BTC Why have I been calling for a rebound short recently without blindly leading everyone to buy the dip? Because the 30-minute Bollinger Bands are very interesting. The upper band cannot be broken through consecutively. I just retested the 30-minute Bollinger upper band with community members to try shorting (position 8). The first take profit is near the mid-term. The approach is consistent with AI's thinking: the 30-minute Bollinger Bands are also an important recent indicator. Only after breaking and stabilizing above the 30-minute upper band will there be a chance to start an upward channel; otherwise, the trend continues downward, waiting for a second or third test opportunity.