If you are sure you will call back 20 points, only a fool would resist. The problem is that you don't know; how can you be sure about the high point you mentioned? When Bitcoin was at 20,000, some said it was a high point; at 60,000, it was also a high point. Now it's at 110,000, and it's still a high point. Which one is actually the high point? From another perspective, if you sold at the high point of 20,000 versus holding on at the high point of 20,000, who has made more money now? Is it the vast stars and seas or the bottomless pit that can be clearly explained by anyone?