*🔥*Bitcoin** is a decentralized cryptocurrency created in 2009 by Satoshi Nakamoto. It operates on a **blockchain**, an immutable public record that ensures security and transparency. Its supply is limited to 21 million units, promoting its scarcity. Transactions are peer-to-peer, without intermediaries, and are validated through **mining** (consuming energy). It is resistant to censorship and allows for fast global transfers. Its volatility, environmental impact, and use in illegal activities generate criticism. Some view it as "digital gold" to protect value against inflation, while others consider it speculative. Countries like El Salvador have adopted it as legal tender. .$BTC