A big player in the cryptocurrency circle made 70 million yuan with 200,000 yuan in less than a year at the end of 2016. After the bear market in 2018, his assets shrank to 4 million yuan. He regretted it for a year - he should have played in the bull market, only in the bull market can there be ten-fold or hundred-fold coins, and the cryptocurrency circle is a market where everything rises and falls together.