An interesting phenomenon is that those who verbally claim to be long-term investors often panic when the market experiences short-term fluctuations. Where is the supposed steadfast holding? When the price drops by 10%, they start to hesitate; when it rises by 15%, they rush to cut their positions. Short-term K-line fluctuations can mess with people's mentality, which is probably the most difficult part of investing—it's not about the ability to pick coins, but about psychological resilience.