Why can the peak and trough become support?

The peak and trough are split in half from the middle, one half rises and the other half falls. Think about it, if there is not enough strong force to reverse the situation, will it continue the trend of the first half? Since the trend that was originally moving forward has turned around at the peak and trough, it means that there is a great energy here, just like a car moving at a high speed. Can you stop it by manually pushing it? Obviously not, the person will fly away. You can lean on a wall, but a wall can only stop it. This force can make the car stop and return directly to the starting point!

Since the cycle has a time attribute, long-term trading behavior forms a large cycle, so the capital investment energy of the large cycle is greater, and the effectiveness as a support is stronger

Then use the daily and weekly lines to draw all the highs and lows for trading, which also includes the area that has been sideways for a long time (it can be viewed as a whole)

When you see the K-line hit the support you drew on the daily and weekly lines within 15 minutes, you observe how the funds exert their strength. If it reacts violently here, just like you pull the carp that just bit the dog, the thief pulls vigorously, then you can intervene, bet on one direction, set a small stop loss, and get segmented profits if you bet right. If you bet wrong, at least you lose very little.