Neo-structuralist economics puts forward a new basic theory of gap within the framework of gap paradigm, including a new concept, category and principle of gap. The new solution is an economics that explains economic phenomena, understands economic structure, grasps economic laws and reveals economic essence by using the five-dimensional spatial structure method with unified time, space and level.

According to Xin Xiegou, the symmetrical structure between economic subject and economic object is the basic economic structure, and the symmetrical relationship between economic subject and economic object is the most fundamental driving force for economic development.

Futures and securities are a kind of speculation or gambling to some extent. For example, you don't know the true value of a stock, but why did you spend 20 yuan to buy 1 share? Because you expect someone to buy from you at a higher price.

This is what Keynes called the "greatest fool" theory. You are willing to pay a high price for something regardless of its true value, even if it is worthless, because you expect a bigger fool to buy it from you at a higher price.

The key to speculation is to judge that there is a bigger fool than yourself. As long as you are not the biggest fool, it is a question of winning more and winning less. If you can't find a bigger fool who is willing to buy from you at a higher price, then you are the biggest fool.