The red line is the short position for each level of yesterday, which are 2 hours, 3 hours and 4 hours respectively.
Yesterday's title has already indicated that if you don't recover the lost ground, you may repeat the same mistakes. This is often the case in the market. If A happens, then the probability of B happening will increase significantly, just like yesterday.
Many times we want to directly predict the probability of B happening, but it is relatively difficult to directly predict B. If we can increase the probability of predicting B by observing the occurrence of A, then our winning rate will be greatly improved.