The future in English is the future, which evolved from the word "future". It means that both parties to the transaction don't have to deliver the physical object at the initial stage of buying and selling, but agree to deliver the physical object at some time in the future, so China people call it "futures".

Generally speaking, you have to learn something before you buy it in three months, but you don't know what the price will be like in three months, so you should find someone who will sell it to you in three months, sign a contract first, pay a part of the deposit first, and then buy it at the contract price in three months, thus avoiding the risk of price change in three months.

Therefore, futures, also known as futures contracts, are standardized contracts formulated by futures exchanges, which stipulate when and where to deliver a certain quantity and quality of goods to the trading object or subject matter of futures trading. Source futures