Of course not. Before the trading line of Shanghai Yimeng trader is issued at point B or S, it combines various indicators, such as: revealing secrets, sector oscillation, etc. Moreover, the BS points confirmed by traders after the market closes every day will not disappear, nor will all the BS points in history. They can be used as a basis for facts, and future functions will never be used for correction. The author asked this question because he doesn't know much about traders. He suggested watching more training videos. It is best to participate in local training courses and learn how to use traders better instead of blindly operating.