$BTC Bitcoin is digital money that works without banks and governments. It was created by a person (or group of people) under the pseudonym Satoshi Nakamoto in 2009. The feature of Bitcoin is decentralization: there is no single center that controls everything. All users participate in supporting the network themselves.
Transactions are recorded in blocks, which are linked in a chain - this is the blockchain. To add a new block, computers around the world solve complex problems. This is called mining. For this, miners receive a reward - new bitcoins.
A maximum of 21 million bitcoins can be created. This means that over time it becomes increasingly rare - like digital gold. $BTC there are no usual accounts like in a bank. Everything is built on a system of "unspent coins" - which means it is easy to trace where the money came from and where it went.
Currently, many people use Bitcoin not only for purchases but also as a way to store money - especially where there is inflation. Yes, it has downsides: slow transactions and high electricity consumption. But solutions are already being created to fix this - for example, the Lightning network, where transfers are almost instantaneous.