If we replace the terms "bull market" and "bear market" with "simple market" and "difficult market", doesn't it become instantly clear?
As long as we understand when it is a simple market and when it is a difficult market, we naturally know whether to hold heavily or lightly;
Once we know how to adjust our positions, we understand when to buy major coins and when to chase altcoins;
Once we are clear about which coins to buy, we can judge whether the market sentiment is at a peak or a trough;
When we understand the changes in sentiment, the timing for bottom fishing and topping out becomes clear.