According to Sina Finance Report, on November 30, independent economist Jin Yanyan said that blockchain is a golden key to open new space for wealth growth. What is a positive blockchain? First, he is a ledger, distributed ledger; second, he is a machine that creates trust; third, he is a platform, a platform for developing new resources and new assets; fourth, he is A set of tools is to enable our future generations to develop and utilize cloud resources. When we have the law, the rules, and the team, what we are going to enter now is the physical blockchain. The physical blockchain will lead us to a new economy, the digital economy.