Bitcoin remains in a range-bound pattern in the short term, but the rebound momentum is clearly insufficient. The highs and lows continue to decline, and the short-term weakness has been basically confirmed. The 4-hour Bollinger Bands are generally trending downward, and even if there is a brief rally, it is quickly suppressed by the bears. The 90,000 level above acts like an "iron gate," difficult to break through and hard to stabilize above. The current strategy remains primarily bearish.