According to Sina Finance News, the 2019 (18th) Annual Conference of Chinese Business Leaders, hosted by the "Chinese Entrepreneurs" magazine, was held in Beijing from December 8th to 9th. Yao Yang, Dean of Peking University National Development Institute, attended and delivered a speech. Yao Yang mentioned in his speech that a lot of blockchains have come up recently. The application scenarios of blockchains are very limited. So many companies follow the trend and still think about the air.