There are four normative premises. The first is that people are residents of mainland China. The second is in the 21st century. The year is defined as 2020. The year in 1980 is defined as the third in 1980. Technology is defined as the fourth that can be put into large-scale commercial use. Object is defined as the assumption that the interviewee’s subjective cognition far exceeds the current engineering practice level. There is a supplementary condition, which is to allow the question to be examined from multiple different social roles. If the person in 1980 is a bachelor of 1977.1978.1979.1980 For students/graduate students, the answer is: there is basically no small or small affiliated organization in the Chinese academic circle. This organization is generally responsible for the collection and sorting of scientific and technological information. At that time, China’s scientific and technological information was basically circulated internally. Have the student status, work permit or letter of introduction of the academic unit. These scientific and technological information not only involve advances in cutting-edge fields, but also generally involve conventional advances in the industrial field. For example, take the 12306 ticketing system of the Ministry of Railways. If you are a student of a university affiliated to the Ministry of Railways, you can basically learn from the library when you read scientific and technological information magazines that in 1980, the All-Suzhou Railway Transportation Science Research Institute had done four or five. The “Express -2 (ЭКСПРЕСС-2)” ticketing system was developed in 2015. This system can realize all-terminal networked ticket sales on the entire Soviet Union. Passengers can purchase railway tickets that will arrive in the next 45 days from the terminal at the station. This system was put into production in 1982, so for college students in 1980, something like 12306 is not a science fiction at all, at best it is an engineering problem constrained by material conditions. If it is for the defense industry, there is nothing sci-fi. The handheld GPS terminal is a technically content thing in 1980. It is still a little far away from sci-fi. In 1980, GPS was allowed for civilian use, and in 1982, the Soviet Union. The GLONASS system began to be networked like nuclear thermal rocket engines that now look quite sci-fi. The United States and the Soviet Union were engaged in the 1960s, and all engineered products have come out of automated command systems? Yes, the research and development of the Soviet army’s maneuvering, light, and air began as early as 1980. By 1980, the long-range early warning radar network and the establishment of a unified and centralized missile early warning system in the Soviet Union were almost completed. . You must know that the Arpanet in the United States was from the 1970s. The Internet and informatization are far less sci-fi. As for what digital country, the digital government is compared with Kitov and Grushkov’s Cyber Soviet Union. Kitov, director of the Computing Center of the Soviet Ministry of Defense, was considering the automation of Soviet planned economic management in 1957. Rushkov went further and directly proposed the establishment of a unified economic control and information exchange system across the Soviet Union, which was in the 1960s. To be crazy, people are much crazy than Baidu, Sina, and Ali. They are trying to establish a direct data link from the headquarters of the State Planning Commission (Moscow) to any machine tool (production line), and Industry 4.0 is nothing more than this. If it is really done, I believe that Lubyanka’s basement will really become the highest place in the whole Soviet Union, because there can really see every move of the whole Soviet Union with the help of Grushkov. Grushkov died in 1982. Many years before his death, he predicted that a hand-held information terminal and paperless reading and paperless office were all his visions in the 1970s. To be honest, for college students at the time, as long as they borrowed scientific and technological information journals, they would learn about these things, which is not unusual at all. If we talk about spaceflight, then after the Cold War, it is simply a big shame. Salute series space stations are things from the 1960s. Diamond series military space stations are things from the 1970s. Not only are they in the sky but also armed with Saturn. 5 is something from the 1960s, Energy. It’s something from the 1980s, and the Soviet Blizzard started drawing in the early 1980s. The Blizzard also carried an AL31, which all began to evolve into aerospace aircraft. None of them surpassed the cognition of Beihang and China Southern Airlines in 1980. Even in the Soviet Union, in the 1970s, it was optimistic that a Mars base station could be established in 2000. Is the human base station on Mars completed in 2000? Not to mention the energy field. The Soviet fast breeder reactor BN600 started operating in 1980. The current fourth-generation Russian nuclear power BN1200 and BN600 have a direct evolutionary relationship in technology. Is it science fiction? I don’t think that engineering thermophysics all over the country think it’s science fiction, even in 1980. At most, the engineering is very difficult, but it is definitely not up to the level of science fiction where theoretical explorations such as starship fusion reactors and warp engines are still a mess. So this problem is essentially a problem of poor information. One is the difference in the amount of information and the other is the time difference. If the subject of the survey is a scholar who eats commercial food, there is nothing sci-fi, like many second generations born in the 90s have computers at home. There are mobile phones before elementary school. Mobile phones and computers are nothing unusual. If the target is farmers in the rural areas of northern Shaanxi in 1980, then the light telephones upstairs and downstairs are a bit sci-fi.