If there is room for making money, there must be a lot of room for doing more. For example, a variety of 2000 yuan/ton, in theory, up to 2000 points, there is no upper limit in theory.

But futures itself is a zero-sum game, that is, if you do more, someone will short; If you are short, theoretically someone will go long. If you earn more, someone will lose money by shorting; If you make a profit by shorting, you will lose if you do more.

In this sense, no one can make much money (you can turn empty at any time if you do more, and vice versa), depending on the right direction.