币界网报道：The altcoin market is experiencing a prolonged downtrend against Bitcoin, with major cryptocurrencies like Ethereum (ETH), Binance Coin (BNB), and Solana (SOL) showing significant declines. Bitcoin's dominance has surged to 54.5%, its highest level since April 2021, as investors shift focus to the leading cryptocurrency amid market uncertainty. Analysts attribute this trend to Bitcoin's upcoming halving event in 2024, which historically triggers bullish momentum, while altcoins struggle to maintain their value. Ethereum, despite its strong fundamentals, has dropped over 20% against Bitcoin since September, reflecting broader market caution. Experts suggest this divergence may persist until clearer regulatory frameworks emerge or institutional interest in altcoins rebounds. The current market dynamics highlight Bitcoin's resilience as a safe haven compared to higher-risk altcoins during periods of volatility.