In theory, it's understood that a rising market is a good time to unload assets. But in practice? Every time the coin price soars, policy interventions come in to disrupt, and the market immediately reverses and declines. No matter how much psychological preparation you do, it's useless—before you can react, the rebound is back. The contradiction lies in the fact that market fluctuations often exceed expectations. During Trump's administration, policy directions had a clear impact on the crypto market, increasing volatility and making timing especially difficult. What seems like a simple buy low and sell high strategy is actually full of uncertainties in practice. The problem isn't a lack of understanding of the principles, but that market rhythm and policy rhythm are always misaligned. Want to sell precisely at the highest point? It's difficult.