What I regret most is that I didn’t buy BTC at 21,000 RMB. I had 1 million in cash at the time, but I didn’t know how long the cryptocurrency market would be bearish. I was also a full-time cryptocurrency trader (I quit my 300,000 RMB job in 2017), and I was worried that I would need to buy a house because my hometown would be demolished, so I didn’t take action. At that time, I thought that the housing price in Zhengzhou was 20,000 RMB. At that time, less than 20 million BTC had been mined in total, and the area of ​​houses in Zhengzhou far exceeded 20 million square meters.