Babbitt reported on the spot that on December 19th, a special series of "Intelligence + Academy" blockchain series China Internet Association training jointly organized by China Academy of Information and Communications Technology, China Internet Association and Beijing University of Aeronautics and Astronautics was held in Beijing. Jin Jian of the Institute of Industrial Internet and Internet of Things of the Institute of Information and Communication Technology proposed the "connection paradigm 3 questions": 1. Smart connection: Everyone says that everything is connected. Why are many devices not connected? 2. Value exchange: Why can't I pay peer-to-peer like sending a text message? 3. Data protection: Why is the information not left to the owner? Why can't my data be carried with me? Can't play greater value? Jin Jian said: "Blockchain technology is very complicated, but these three questions have inspired us, let us know that we have entered an era of what technology is needed, and understand what blockchain technology can be used for."