Recently, the "coin circle" has suffered another wave of earthquakes. Bitcoin has fallen one after another, from above the 70,000 US dollar at the end of July to about 58,000 US dollar on August 16. Especially on August 5, Bitcoin once fell below the 50,000 US dollar, hitting a new low in nearly a year. The daily decline reached 15%. More than 270,000 people liquidated their positions, and the total amount of liquidation exceeded 1 billion US dollars. Our country has always guaranteed virtual cu...