The people who truly make big money must have great courage and boldness, meaning you identify the market trend accurately and aggressively go all-in. For example, during a recent sharp decline, the drop was very fierce, and many people didn't have time to react; they chased short positions during the decline. But because the fall was so intense, after the shorts were exhausted, the trading volume would decrease. Many people thought it was the bottom and started to buy the dip, leading to a rebound. When this rebound reaches a certain level, it forces short sellers to close their positions, resulting in a spike. At this point, the market becomes unstable, and if you can't judge correctly and enter the trade, you can be easily wiped out. The little courage you have left is also consumed, and it can no longer be called great courage and boldness.