The so-called cognition is that Bitcoin will always fluctuate upwards, always bullish and always teary-eyed. There is nothing new under the sun; the US stock market, gold, Bitcoin, and so on are just capital games played by humans. You must understand that capital is profit-seeking and bloodthirsty. What we ordinary people need to do is to follow the trend of the times. In a bull market, do not call the top, do not short in a bull market, buy when no one cares, follow the trend midway, and sell when the crowd is roaring. This cycle can continue.