If everyone is short, commodities will fall again and again, and even lead to stock market crash and economic crisis. Jesse Livermore, a big bear in the American stock market in the 20th century, once shorted cotton in the American stock market and was asked by the President to close his position. But in China, you won't be gently asked to flatten it. Just force your unit. Who do you want to accompany the money? I can't answer this question. When the value of something was 10 yuan, it has now fallen to 5 yuan, but its actual value is 10 yuan. Will you be short? No, so there is no such thing as everyone shorting. Perfection, if there is no limit to ups and downs, will fall to the end. China is limited. Go straight down. Then those who do more before the limit will lose money. Or if you do too much yesterday, you will lose money. But the next day, the transaction will definitely stop, and the state will pay close attention to it.