Shenyu (@bitfish1) tweeted to share the difficulty factor of trading. He believes that arbitrage operations are the least difficult and only need to have basic addition and subtraction skills; bottom fishing operations require a certain degree of confidence in position management and emotions; heavy positions after selling fly require higher mentality; top escape operations require comprehensive analysis of fundamentals, macro and group sentiment and other factors; leveraged trading is the most difficult because it amplifies volatility, reduces survival, and requires proficiency in a variety of trading skills. Shenyu said that after years of trading, he no longer expects to escape from the top and only learns how to take orders.