In fact, I personally think that the most fundamental reason for the financial turmoil on Wall Street is actually the excess of financial capital. Because the United States pursues a free market economy model, financial capital is prone to herd behavior and follow suit behavior. From the high-tech bubble many years ago to the real estate bubble a few years ago to the current surge in resource futures, the shadow of American capital surplus is exposed.

There is a saying in the market: "The first person to discover is a genius, the second person to follow is a talent, and the third person to follow is a fool." However, the greed of capital determines that when a certain field obtains excellent capital return, a large number of idle capital will flock to it, which will eventually lead to the bubble growth in this field. And this will be mixed with many non-emotional investments or irrational investments. In this way, when a link in the whole capital chain fluctuates due to some factors, every link in the whole capital chain will collapse due to the outbreak of various hidden dangers buried in overheated investment. Of course, some geniuses and talents quit in time and turned to new fields, while most of the rest were "fools". They lack foresight, so they often don't pay enough attention when there is a crisis in a certain link, but they are too worried when there is a crisis in the whole chain, which eventually leads to greater panic. )