Of course not. Investors and speculators are indispensable participants in financial markets. Can you say that people who work in the financial industry do nothing? ! No way! Don't take the word "speculation" as a derogatory term. Speculation is short for timing investment. In the financial market, the concepts of long-term and short-term are basically used to distinguish between investment and speculation. Do you know what it means to have no speculators in the financial market? It means that the liquidity is greatly reduced, the trade fair is extremely inactive, and the market is full of long-term investors. You may not find your opponent's plate, so speculation plays a role as a lubricant! So, without speculation, he can't do it. He did something practical. He was not gambling (by luck), but a skill (correcting abnormal fluctuations). Speculation will contribute too much to society!