Arbitrage opportunities in the cryptocurrency market are indeed diminished by high-frequency trading (HFT). HFT leverages advanced algorithms and ultra-fast infrastructure to exploit price discrepancies across exchanges in milliseconds, far outpacing manual traders. As HFT firms dominate, they quickly close price gaps, reducing the window for profitable arbitrage. Additionally, HFT increases market efficiency, aligning prices more closely across platforms. However, arbitrage opportunities persist due to market fragmentation, varying liquidity, and occasional inefficiencies, especially in less liquid or emerging markets. Retail traders may still find opportunities in slower-moving markets or during high volatility, but competing with HFT requires sophisticated tools and low-latency systems.