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.
The world has seen a major stock market crash this year, a rare occurrence this year, and the Chinese stock market has also bottomed out repeatedly this year.