I always thought that most people who have achieved financial freedom no longer rely on contracts to make money. I didn't expect that even celebrities like Ms. Zeng Ying would use millions of dollars of principal to open contracts, and even have no extra cash flow to add to their positions... Such a large position seems to have far exceeded her personal risk tolerance! Ms. Zeng Ying is even a graduate of a prestigious university with a finance major, a well-known financial blogger, and a TEDx speaker. Yet she still heavily invests in contracts, suffering significant losses of wealth, and ultimately had to borrow money from friends and even her ex-boyfriend to add margin. I want to know, why is this happening?? Is it a failure of professional knowledge, or is human nature itself unchangeable?