Bitcoin encounters resistance on the upside with a slight pullback. The 4-hour Bollinger Bands are opening upward, and the price remains above the middle band, with the bulls still in control. Although it retraced to the middle band, it quickly rebounded upon contact, indicating solid support below. The market is like the lingering echo at the year's end, pausing briefly but still retaining momentum. In terms of strategy, continue to favor long positions at low levels, patiently awaiting the start of a new chapter.