I always have a principle when buying altcoins

Leader thinking.

Don't use the compensatory theory. The leader can be strong all the time, and it will become stronger and stronger, and the blood-sucking effect is also obvious. In the later stage, it is those junk coins that compensatory rise.

There is another method, you can observe which altcoins are the most resistant to declines every time they pull back

You can see from this rebound that the strong altcoins have returned to the high point before the waterfall, but the weak ones have never returned. This is like choosing the wrong coin is like marrying the wrong man, even if it is bottom-fishing, the same principle applies.