Bitcoin may be coming to an end to this boring narrow range oscillation and is expected to experience a fluctuation of around $5000. Looking back at the past three wave band filter breakthrough warning signals, they brought rapid market trends of 3.85% in 12 hours, 4.61% in 8 hours, and 4.06% in 8 hours, respectively. Based on the incubation period of these signals and the recent sustained low volatility, I believe that the volatility space after this breakthrough is likely to be between 3% and 6%. But there are a few points that must be made clear here. Firstly, this breakthrough signal is actually like a traditional convergence pattern, which cannot accurately predict whether the market will ultimately rise or fall in advance. Its advantage lies in the low cost of thinking to determine whether the market has entered the breakthrough zone. That is to say, signals can only indicate that "fluctuations are coming", but cannot predict the direction.