Bitcoin has surpassed the $73,000 level, prompting capital inflows into altcoins, whose total market capitalization is approaching $1.2 trillion, with a 24-hour trading volume exceeding $90 billion. Key events this week include Aave's V4 proposal, LayerZero unlocking tokens worth $52 million, and NVIDIA's GTC conference, which could boost AI tokens. The Federal Reserve's interest rate decision on March 18 also adds macroeconomic catalysts to the market, indicating that altcoins may experience volatility and short-term gains.