You said that you invested a lot of money, but you only used a small part of your working capital, right? The example you cited above is that when he rose to 10W, you didn't explode because you had a lot of margin, and then you fought until he fell back to 3W, and you earned it, right? But do you think this is interesting? According to you, you can make a lot of money, but think about your cost. Do you think it's worth it? Futures is a speculative market. If you do this, you can also make a stain. You said that the method may not win, but the probability of profit is very high, but I think your approach is very chicken. ...........