It is often said that saving cash will depreciate and interest will not keep up with inflation. Reasonable inflation is beneficial to the development of the country and society, and everyone expects it. The idea of the rich is to keep investing to keep their wealth growing, and cash is the fastest depreciating asset. At this stage, we have just stepped out of the brink of deflation, and inflation is still expected, and inflation expectations may be more serious. The reason is that the world has invested too much money in the economic crisis. Once the economy stabilizes and confidence is restored, and at this stage, the major central banks are relatively indecisive in tightening monetary policy, there will inevitably be a terrible situation in which a large amount of currency depreciation leads to high inflation and low growth. Why is it a low increase? Because the demand is still weak at this stage, and the unemployment rate in many countries is still very high. If it runs counter to it, it will also affect demand. Global demand has not recovered, so it will be more difficult to increase and improve. Now we can see trade protection incidents every day, reminding us that cakes are getting smaller and smaller, and everyone is taking the initiative to grab them. At this stage, investment in commodities should be mainly based on callback.