Bitcoin is a digital currency created in 2008 that allows for fast and relatively free transactions anywhere in the world. It uses cryptography and a decentralized network to verify transactions and create new bitcoins. The value of bitcoin comes from its usefulness as a currency and the demand for it. However, bitcoin is still experimental and volatile, with an uncertain future in terms of stability, regulation, and widespread adoption. The bitcoin community continues to develop the software, payment systems, and applications around this new currency.