How to identify a fool's basket?

1. Making 10 times profit in a year: some ability, good luck; making 10 times profit every year for two years: capable, lucky; making 10 times profit every year for three years: highly capable, lucky; making 10 times profit every year for four years: a genius, lucky; making 10 times profit every year for five years: probably a fool's basket.
2. Betting on a 10x stock today, eating a big bull coin tomorrow: probably a fool's basket.
3. Doubling leverage every day to gamble, sharing the returns if right: probably a fool's basket.
4. Good investing requires deep thinking; great investors are likely also good thinkers, with their own ideas and philosophies. Whether it's the long-term figures like Buffett, Soros, Keynes, Lin Guangmao, or recent successful online and local investors, they all have profound insights and outputs. If their performance doesn't match their sharing, it's probably a fool's basket.
5. Never having made mistakes: probably a fool's basket.