According to CoinMeta, the founder of f2pool, Shen Yu Mao Shihang, stated in an interview with William Joy that he truly began investing after experiencing DEFI. He believes that early mining and holding Bitcoin did not constitute true investment; rather, it was mainly based on intuition and preliminary position management. After DEFI and summer, by participating in projects, summarizing practices, and resolving doubts, he gradually developed a clear set of investment frameworks and logic.