Trading is essentially the same as doing business—it's all about earning the spread between buy and sell prices. Retail investors frequently suffer losses, and the superficial reasons vary widely, but fundamentally, it's a problem with mindset and trading rhythm. When prices are rising, they hesitate to take profits, always feeling there's more room; when prices fall, they panic and cut losses.

Here's an interesting data pattern: the market's psychological tolerance has been tested by large funds—when the price drops 5%, most people can hold; at a 10% decline, about 30% start selling; at 20%, panic erupts, and 50% of retail investors sell off; once it drops 30%, over 80% give up entirely. These data points have long been understood by big players.

So the game rules are like this: the market maker starts by pushing prices down at the outset, repeatedly suppressing to cause a one-sided decline, triggering retail investors' fear. A large amount of cheap chips then flows into their pockets. Just after you finish cutting losses, they reverse and start pushing prices up. When it rises 5%, you think it's a rebound; at 10%, you regret selling; at 20%, you can't resist chasing in—only to be trapped again at a high level.

No matter how much the index rises or falls, retail investors just can't make money. This isn't a technical issue; it's a psychological one that's been completely exploited. Do you really think retail investors can fight against this kind of capital play?