On the evening of January 3, the third debate of SheKnows's final debate at the end of the year began. The theme of this debate was "2020, the year when the public chain supervision broke the game." Zhu Youping, deputy director of the China Economic Network Management Center of the State Information Center, said: We believe that the 94 ban was timely and effective at the time. But in more than two years, the blockchain industry has undergone tremendous changes, and this policy needs some adjustments. "One size fits all" is fast and efficient, but it lacks flexibility and is not conducive to innovation. We believe that the biggest role of policy is to protect innovation. Protecting innovation is more valuable than preventing risks, and of course it is much more difficult. Therefore, we recommend that instead of spilling dirty water with children, we must adopt the method of "good chain expels bad chain and good currency expels bad currency". The time has come to implement classified supervision and penetrating supervision with the supervision sandbox.