What is Cryptocurrency? Why do you need to care about it? World by Aman Vidyarthi - September 27, 2021October 10, 2021 We have a long history with financial transactions. Long before the invention of money, people used a system of exchange called the barter system. With the passing of time, our transactions became more efficient. We went from the barter system to precious metal coins to traditional money to virtual money. Now, the next stage of this journey is cryptocurrency.