In April 2023, the cryptocurrency market experienced a significant rebound, with Bitcoin breaking through $83,000 and Ethereum returning above $1,600, while AI concept tokens led with a 15% increase. The main driving factors include: 1) The Trump administration suspended additional tariffs, easing concerns about trade conflicts; 2) Markets expect global central banks to maintain loose policies, increasing liquidity; 3) The recovery of the tech sector in the U.S. stock market boosted sentiment in crypto assets. However, the rebound is driven by sentiment and still faces macro risks in the short term (such as Federal Reserve policies and black swan events involving Satoshi Nakamoto's holdings) as well as technical resistance levels (BTC resistance at $81,211). Investors should be wary of volatility and avoid blindly chasing highs.