Bitcoin ($BTC ) is the pioneer of cryptocurrencies, launched in 2009 by the mysterious Satoshi Nakamoto 🧑‍💻. It's a decentralized digital currency that runs on blockchain technology 🔗, allowing peer-to-peer transactions without intermediaries 🏦. With a fixed supply of 21 million coins 💰, Bitcoin is often seen as "digital gold" for its scarcity and store-of-value properties 🪙. It's mined using proof-of-work, where powerful computers solve complex puzzles 🔥. Bitcoin plays a major role in the crypto world 🌍—from being a hedge against inflation 📉 to powering borderless payments 💸. Its impact continues to shape finance, tech, and economic thought globally 🚀.