he troika of finance is banking, brokerage and insurance. Some of the functions of these types of financial institutions have developed corresponding products in DeFi, and some are still missing. By disassembling these functions one by one, we can predict what room for development in DeFi in the future. A bank is an organization with the characteristics of centralized operation, and there is no real bank in DeFi. One of the main functions of banks is lending, and the corresponding product of ...