The target price range for Bitcoin's bottom in this bear market: (1) The target for this 'spring' drop points to the $52,000–$54,000 range. (2) If significant bearish events occur in the second half of the year, such as a U.S. stock market crash or an AI bubble burst, Bitcoin's price could drop as low as $48,000–$52,000. According to the simulation and analysis of the three-dimensional trading system AI, Bitcoin is unlikely to drop to the widely expected Fibonacci retracement 0.786 level, around $42,000.