In the cryptocurrency world, the '80/20 Rule' is commonly observed, meaning that 80% of the time the market is relatively stable, and real profit opportunities only account for 20%. Since it is impossible to predict when these opportunities will arise, you must always remain in the market. Therefore, position management is crucial; you should not remain fully in cash waiting for a rise, nor should you be fully invested chasing highs. The ideal practice is to maintain a heavier position during rises and a lighter position during declines.

However, many people often adopt the wrong strategy, which is to increase their positions as the price rises, but to reduce their positions when the price falls. This inverted pyramid method of increasing positions can lead to significant losses when the market reverses, similar to gambling: when you make a small profit, you feel good, but once you place a large bet and incur a loss, all previous profits may evaporate instantly.

Investing requires going against human nature: 'be greedy when others are fearful, and be fearful when others are greedy.' At market peaks, when everyone is chasing prices, you should withdraw your chips, and re-enter at market lows. Although this contrarian approach may make you feel uncomfortable, successful investors are often those who can do this.

Greed stems from the hope of compensating for losses through the rise of a particular coin, leading to an unwillingness to sell as the price increases; this mindset is very dangerous. You must learn to take profits at the right time, just like eating fish where only the middle part is good, while the head and tail are not.