On April 20th, DGroup founder Zhao Dong and Laibit Mine Pool Jiang Zaller made a comment on the “Industrial Structure Adjustment Guidance Catalogue (2019, Draft for Soliciting Opinions)” when the guest was chatting in the ChainNode live broadcast room. Zhao Dong said that the state's prevention of mining is a "tough thing". In fact, mining in the wet season should be regarded as a green industry, and it can earn foreign exchange. Laibit Mine Pool Jiang Zall believes that the document belongs to the draft for comment, the mining behavior is not polluted and (the bitcoin dug out) can be changed to US dollars; in addition, it means that the traditional industry should be careful to mine, because mining is not an industry Behavior, but a financial act. Because the mining machine and Bitcoin can evaporate indefinitely.