A friend asked me a very interesting question. "Why don't you draw a trend of selling at the top and buying at the bottom like everyone else!?" but instead draw a trend of buying when it's going up, selling when it's going down!?" The question actually sounds reasonable, but that's for big investors, buying and selling without using leverage. But small traders during the day, using leverage, should buy and sell according to the trend that the "sharks" have been going, called following, because small traders use high leverage, so they buy and sell at the best possible price, they can't follow long-term, so sometimes they have to know how to accept a cut loss to turn around. Most new small traders "die" by going against the trend, with the expectation that it will return to the previous bottom or peak, without knowing that the "sharks" are creating a "tsunami" and it can hover around another peak or bottom. Consider carefully before placing an order.