A future in finance, especially in the world of cryptocurrency, is like making a promise to buy or sell a digital currency (like Bitcoin) at a set price on a future date, no matter what the actual price is on that day. It’s a way for people to guess whether the price of the cryptocurrency will go up or down, and make money or protect themselves from losing money based on their guess. This is done through a special kind of contract and happens on websites called exchanges. It’s a useful tool for dealing with the big price changes that are common with digital currencies.
