What is overfitting? What kind of monster coin radar detector do you see now? Essentially, it's the people who developed this radar detector. They observed that monster coins like River Raven or the previous TRB would have negative funding when they were rising, so they started to look for patterns. To what extent did the funding become negative? Then they will pull the funding indicator from -0.1 to -2 and look at it one by one. When they find a value that performs well and can capture most of the skyrocketing demon coins in the past, it becomes one of the indicators they use to develop a demon coin radar detector. This is called overfitting, which is also the easiest pit for beginners to step into. In fact, when you use it, you will find that there is nothing useful about it. Even the skyrocketing coins are being pushed, and there are more horizontal fluctuations and even downward ones being pushed, because there is still one fundamental reason: the market noise is very loud. If the noise cannot be effectively filtered, this type of radar detector is essentially a castle in the air.