On August 20th, the "POW'ER 2019 Global Developers Conference" hosted by Mars Finance was held in Beijing. Wang Yongge, a professor at the University of North Carolina, said that the blockchain has not attracted widespread attention from the cryptography community when he participated in the "Wang Feng Ten Questions Live Edition". The blockchain does not need too complicated consensus agreements, if it can attract more excellent cryptography talents. Joining, it is possible to develop a simpler consensus agreement.