Investment speculation is nothing more than probability judgment/position management/buying and selling decisions. Whether you are a value investment, measured in years; Still writing memes, in minutes. The essence of profit and loss is, Firstly, can we make objective and accurate judgments about probability; Secondly, can reasonable management and risk control be implemented for position management; Thirdly, can you have the patience to wait for a certain probability before taking action. No matter how awesome or experienced, the probability of being suitable for you is also random and uncontrollable. This is the difference in mentality and its impact on the final outcome.