This is just an analogy. Actually, it doesn't mean that you can buy 20 thousand things with 2000. If so, everyone will buy it.

In fact, your 2000 yuan is a deposit; Futures is a contract, and your 2000 is just a contract, not a physical object, with a physical value of 20000. With this contract, you can transfer the contract when the physical price rises and get the difference.

This is equivalent to buying something with 20,000 yuan for 20,000 yuan, and then changing hands after it appreciates.