People always learn lessons from continuous injuries, and the lessons in the crypto world are nothing more than profits and losses. Compared to society, it is more straightforward and brutal. Profits come from issuance, grabbing airdrops, buying investment targets, and making the right decisions. Losses come from being deceived and played for suckers, making wrong decisions, and getting liquidated on contracts. When looking at a longer time frame, most people's losses are due to getting liquidated on contracts. Even extreme market conditions that happen once every four years can lead to severe financial ruin. If there is a relatively suitable method that can systematically and mechanically eliminate human nature to make money, it is highly likely to be profitable. Reviewing and reflecting frequently, I feel that I am getting closer to the truth.