$BTC Bitcoin (BTC) remains the dominant cryptocurrency, often seen as digital gold due to its limited supply and store-of-value properties. With a fixed cap of 21 million coins, Bitcoin's scarcity drives its long-term appeal. Recent market trends show BTC fluctuating amid macroeconomic factors like inflation, interest rates, and institutional adoption. Major firms and ETFs continue to accumulate Bitcoin, reinforcing its legitimacy as an asset class. However, its volatility persists, with sharp price swings influenced by regulatory news and investor sentiment. Technologically, Bitcoin relies on proof-of-work mining, facing criticism for energy use but praised for security. Layer-2 solutions like the Lightning Network aim to improve scalability. As the first cryptocurrency, Bitcoin sets the tone for the broader market, remaining a key benchmark for crypto performance and adoption worldwide.