The smartest people in the world are all in the financial markets. There are five reasons for this: First, the financial market is the fairest battlefield in the world. It doesn't rely on relationships, resources, or background; it only depends on judgment of right and wrong. If your judgment is correct, money flows into your account; if you're wrong, the market immediately responds. There are no human feelings, no explanations—only logic. Second, the financial market is the fastest place to realize cognition. In many industries, it takes ten years to be recognized as smart, but here, a single cycle can change your life. Therefore, top intelligence chooses this place because cognition can be directly exchanged for wealth. Third, the financial market gathers the smartest people worldwide. You are competing against Wall Street quantitative funds and top capital, using models, algorithms, and computing power. Every step is a high-intensity game. Fourth, this is the cruelest arena for cognitive judgment. Failure in other industries can be justified, but not here. If you're wrong, your account speaks for itself—no excuses. The market is always right. Fifth, this is the only place that can completely burn out a person's cognition. Judgment, discipline, risk, and courage are pushed to the limit. Those who survive are reshaped into stronger decision-makers.