Babbitt reported on the scene that on June 1st, the Wright Coin Blockchain Technology Seminar was held in Wuhan. The founder Li Peicai shared his investment philosophy. He believes that, first of all, real life faces investment opportunities and cannot accurately assess the winning rate. And odds; Secondly, most people invest in most of the time, the bottom line is less than 50%; in the end, most people are averse because of loss and loss can not stop. Therefore, according to the positive expectation system and Kelly formula theory, investors need to assume that the winning percentage is only 20%, and assuming that the loss cannot be stopped, each failure will be lost. Under this condition, the rate of return is very important, preferably greater than 400%.