Bitcoin is a decentralized digital currency that was created in 2009. It allows for peer-to-peer transactions without the need for a central authority. Transactions are recorded on a public ledger called the blockchain.



One of the main features of bitcoin is its limited supply. There will only ever be 21 million bitcoins in existence. This is to prevent inflation, as the number of bitcoins in circulation increases at a decreasing rate. As of January 2021, there are over 18 million bitcoins in circulation.

Another key feature of bitcoin is its anonymity. Transactions are recorded on the blockchain, but they are not linked to any personal information. This makes it a popular choice for people who want to keep their financial activities private.

Despite its popularity, bitcoin is not without its risks. Its price can be volatile, and it has been the target of numerous cyber attacks. It is also not yet widely accepted as a form of payment, although this is changing as more and more businesses begin to accept it.

Overall, bitcoin is a unique and innovative form of currency that has the potential to revolutionize the way we think about money. However, it is still a relatively new and complex technology, and it is important for individuals to carefully consider the risks and rewards before investing in it.