human
I've been hearing a lot of talk about Bitcoin lately. What is it and how does it work?
assistant
Bitcoin is a cryptocurrency, which is a digital currency that is decentralized and not controlled by any government or central bank. It was created in 2009 by Satoshi Nakamoto, who remains anonymous to this day. Bitcoins are stored in a digital wallet, and can be used to purchase goods and services from participating merchants. The value of each bitcoin is determined by the market, so its value can fluctuate over time.