Markus Thielen, the research director of 10x Research, accurately predicted the recent pullback. He stated that the fifth wave of Bitcoin's impact has already begun and the price may surpass $50,000 by the end of the first quarter. Levels above $43,000 are suitable for placing new bullish bets on BTC. As reversal indicators suggest that a tradable low point has been reached, we should focus on long positions. From a risk management perspective, once Bitcoin breaks through $43,000, we should reestablish long positions.