Trading is such that losing is always easier than winning. Many people take a little profit and run, but when they are stuck, they simply hold on for the long term—refusing to sell until it goes back up. This is a very bad habit, akin to what Buffett refers to as 'picking up pennies in front of a steamroller'; that is, you only earn a little each time, which seems to have a high win rate, continuously winning, but as soon as you encounter one that goes to zero, you lose all your profits and even incur losses. Essentially, it is a bad strategy that focuses only on short-term emotional evaluations while ignoring systemic-level risks.

So what is a better trading strategy? Only buy those assets that can afford to have floating losses in the long term and can indeed recover. Only in this way can you have a balance with floating profits—i.e., over the long term, they have gone through many cycles, but each cycle's peak is higher than the previous cycle's peak, and history repeatedly proves this. As long as your assets are composed of such combinations, you possess immense risk resistance and investment advantages, meaning you don't need to judge the timing of entry because, for the future, every moment is a good time.

From a historical perspective, the assets worth long-term investment are few, such as the US stock index, gold, Bitcoin, and so on!