The unstable state of the market has been the ground on which Soros has tested his theory of contrarianism, arguing that financial markets are volatile and disorderly.
There is a popular saying in the stock market: "It's not how much you make in the stock market, but how long you live", and it is this saying that makes me have palpitations about long term investment.
A financial crisis is a persistent contradiction in the operation of activities related to money and capital, for example, a credit crisis in the cashing of bills, a currency crisis caused by a disconnect between buying and selling, etc.