字幕列表 影片播放 列印英文字幕 Our guest today is amazing. I could memorize “Three Hundred Tang Poems.” You know the nicknames of all the 108 heroes in “Water Margin.” I could even memorize the constellations of the 108 heroes. The “Prince of Folk Songs” just stands beside Mr. Sa. We had to withdraw although we wanted to recover the Central Plains. Good. He’s Mei Hong, an academician of CAS and the Vice President of BIT. From a young man who loved culture and arts to the leader in the big data field, he’s witnessed the development of informatization in China. I searched ladders online. Before long, the ads of different ladders popped up. I even got some ads of lifts. That’s why some pushes are stupid. What is big data? Big data means a large amount of data. It’s wrong. Online shopping, navigation and finding and killing Osama Bin Laden are based on big data. What’s the use of big data? Can big data analyze stock accurately? Can I get rich by learning big data? Big data is the new engine for economic transformation and growth. What will our life look like in 2020? Realize a well-off society in an all-round way. This is the special series of “Voice,” “Foresight in 2020.” Win the college entrance examination and boost the future. Hello, dear audience. This is “Voice,” China’s first TV show offering open lectures to the young exclusively sponsored by Yingding Education, the advocate of intelligent education in college entrance examination. I’m your host, Sa Beining. Welcome. Extract plant essence to scientifically supplement both qi and blood. Thanks to Yunnan Baiyao Qixuekang Liquid that is a good choice for staying up for the great support to the program. It’s the first time in five years that we have changed a new stage background. Do you like it? Yes. The new stage carries the new content. We’ve specially designed a new series, “Foresight in 2020”. What will our life look like in 2020? To what extent will our country and nation develop by 2020? All this depends on every step we take today. Our guest today is amazing. He beats his peers hollow at literature. He can even recite “Three Hundred Tang Poems” backwards fluently. Moreover, he peruses kung fu novels and knows well the master-apprentice relationships in different schools. Allegedly, he’s thoroughly familiar with “Water Margin” and knows well the nicknames and features of the 108 heroes. Don’t get me wrong. Our guest isn’t engaged in literature. Instead, he’s a pure and pute science geek. He studies big data. Big data permeates in our life. For example, I searched household ladder online some time ago. Before long, the ads of different ladders popped up when I watched the news on the website. Maybe it was because of big data. Our guest today can dispel my doubts. Why did the ads of different ladders pop up before me for a long time? Let’s applaud to welcome our guest, Mr. Mei Hong, an academician of CAS and the Vice President of BIT. Welcome. Hello, Mr. Mei. Hello. Welcome. Hello, Beining. Please. Thank you all. Please be seated. Mr. Mei, it’s said that you know the nicknames of all the 108 heroes. I’ve forgotten almost all of it. Wu Song? Pilgrim. Song Jiang? Protector of Justice. He has several nicknames. Timely Rain. What kind of tiger does Wu Song slay on Jingyang Ridge? It should be South China Tiger. Why? The northeast wasn’t included in the territory of the Song Dynasty. It’s the association of another data. Well, I could even memorize the constellations of the 108 heroes when I was a middle school student. I was interested in it. How about their blood types? The novel doesn’t record it. I was willing to memorize these things. I could memorize “Three Hundred Tang Poems.” I still liked it in college. I ran a poets’ club and a literary club. When I gave a lecture one day, I suddenly changed my thought. I majored in computing. I didn’t need to memorize many things. My cranial capacity is limited. I can’t memorize so many things. So I didn’t memorize things gradually. I focused on abstract logical ability. If I think the computer can help me do something, I’ll give it up. I won’t do it. I just gave an example. I searched ladders online, and then my phone was glutted with the ads of adders. Is it a reflection of the application of big data? The technical term is programmed data trading. Behind it is the push mode formed by computer programs after data interconnection and sharing. It’s fully automatic. Yeah. It’s not artificial. That’s why some pushes are stupid. Something that we don’t want is also pushed. Right. I even got some ads of lifts. Yeah. What’s the problem? When you browse a website, do you agree to push your data? Theoretically, shopping is your privacy data, but to conveniently shop online, you have to upload your data. It’s like news push today. After we read some news on military affairs… Yes. …or a certain event of sports, we’ll find that there seems nothing else in the world. It’s all about sports. The same kind of thing is pushed. It’s an intuitive feeling brought by the application of big data today. It’s convenient, but now the intelligent push technology has a lot to learn. Big data is an interesting concept. I dare say that many people don’t understand big data accurately. What exactly is accurate big data? What is the status of big data in China now and its future development strategy? Mr. Mei will tell us all this today. Next, I’ll leave the stage to Mr. Mei. Let’s give Mr. Mei a big hand. Thank you, Beining. It’s a great honor to be here. It’s a new stage. This is the first episode of “Foresight in 2020.” I’d like to begin with a figure. A figure will occur in 2020. What’s it? 44ZB. It’s a term to describe computing speed and storage capacity. B means byte. What does ZB mean? The 21st power of 10. I’ll draw an analogy, and you can do the math. We listen to songs every day. A 3-minute song will take 10M if it’s recorded in Mp3. If the memory space is Z, how long does it take to listen to all songs? More than 800 million years. It’s a prediction in 2020 given by IDC. Let’s look back. What was the global data volume in 2003? 5 million T. What’s T? The 12th power of 10. 1,000,000,000,000. What was the volume in 2009? 0.8Z, less than 1Z. The volume in 2020 will be 44Z, but it was 0.8Z in 2009. How much will it be by 2030? 2,500Z. This is an era in which data grow rapidly. Think about it. Data have been playing a very important role in the development of human society. At the beginning of civilization, people kept records by tying knots. It’s one of the ways of recording data. After words were invented, writings were for conveying truth. It’s also a way. Modern scientific data modeling directly uses data. It’s also a way. I remember around 2014, “Xinwen Lianbo” on CCTV began to use the word big data, like the big data of Spring Festival travel rush and NPC and CPPCC. Back then, the viewers of “Xinwen Lianbo” got to know this new word in life. However, many people have misunderstandings. For example, for many people, big data means a large amount of data. It’s wrong. What’s the essence of big data? The depth of data mining and the width of application, namely the breadth of cross-border integration. It’s what big data means. I’ll cite the example of the U.S. census in 1996. The number of births in the U.S. census was 4.9 million. This figure is an objective data description, but if we associate it with the data 40 years ago, we’ll find that from the 1950s to the early 1960s, there was a baby boom after World War II in the U.S. It’s called postwar baby boom. Many babies were born back then. The association gives us a message. What’s it? After the postwar baby boom, the golden age of fertility for this group of people has gone. Let’s look back again. In the U.S., in the 10 years after 1996, or in the 1st decade of the early 21st century, how many junior high school teachers retired? How many junior high school students graduated? Moreover, at that time, tax cuts were needed to curb salary growth, so politicians were under pressure not to let teachers’ salaries rise too fast. If we put these things together, we’ll come to a conclusion. In the first decade of the 21st century, the U.S. might face great educational pressure. It was the pressure of baby boom on education. What did it mean? They might have to make new government decisions, and there might be new business opportunities. This is the tremendous progress we have made in human development through data acquisition, analysis and application. What does big data bring for us? Each of us is surrounded by big data. When we shop online, after we place the orders, the owner of the site will gather all kinds of data together and get a huge data pool. Then he can analyze many things, such as our credit and shopping habits. The map navigation we use every day is the traffic-related data from all walks of life. It can tell us where traffic jams are. The gathering of these data brings much convenience to our life. There are many applications of big data. There are many international examples. I’ll tell you a cool example. Palantir is a company in the U.S. It’s a company engaged in data analysis. One of its most proud efforts was to help the U.S. government find and kill Osama Bin Laden. How did it get the data? It collected the data that governments could provide, like his financial data, communication data and social network, to form an entity relationship network and help intelligence officers analyze where Osama Bin Laden was. There are many other successful examples in 2016. AlphaGo defeated Li Shishi. Now we can’t defeat it in Go anymore. The success rate of AI to predict the Academy Awards was nearly 88%. These are some things that we feel directly. What can big data bring to the country and social development? It provides us with a new means or new thinking to understand the real world and complex systems. Big data is the new engine for economic transformation and growth. It’s called digital economy. What’s digital economy? It’s a new economic form after agricultural economy and industrial economy. What the digital economy bears is different from the development of the past decades. Information technology was used more as tools and means in various industries to help them improve quality and increase efficiency in the past decades. In the digital economy era, information technology will become a leader. That is to say, data are the key factors of production. Network is the most important carrier, and the application of information technology is the most important pusher. That’s one of the connotations of digital economy. It’s said that many jobs will be replaced by robots in the future. What’s behind this? The application of information technology based on big data. Think about it. In the past, a country had sovereignty over its land, sea and air. Later it was extended to aerospace. Land, sea, air and aerospace. What’s the new territory constructed online? Cyberspace. I wonder if you know the Snowden Incident which happened several years ago. Snowden was an employee of a defense contractor. He disclosed the PRISM Program in the U.S. The core of the PRISM Program was to make a comprehensive analysis of all kinds of information that could be collected on the Internet and get intelligence for the U.S. security services. Can you protect your cyberspace? In this sense, big data is a new tool to enhance the comprehensive capacity of the country and to safeguard national security. If a country has no such capacity, how can it protect its safety and enhance its ability in the international competition in the future? Big data is also a new way for government administration or social governance. There are many examples to share with you. I wonder if you apply for a provident fund loan. How many processes are needed? First, you have to go to the Provident Fund Department for the authorization of the credit enquiry and go to the bank for the credit report. Then your company proves your salary, the Civil Affairs Department certifies your marital status, and other departments certify your other statuses. You have to go to over 10 departments before you can get the loan. Later, all service departments gather in the government affair hall, so we don’t need to go around the city. But we still have to queue up window by window. Every window we have to hand in the ID card, the copy of ID card and other materials. We do the same things and fill in the data repeatedly. Now Zhejiang is carrying out “one stop, one trip, one paper”. It takes Quzhou as a comprehensive pilot unit to launch “one window acceptance”. The applicant takes his ID card, purchase contract and down payment voucher and will get the loan in half an hour. Quzhou made a statistic. It (full-year provident fund business) can generally reduce by 180,000 times of handling affairs and 120,000 times of proofs issuing, amazing ability, which brings stronger senses of gain and happiness. This is the example of big data we are talking about. What does the era of big data bring to us? It brings convenience to our lives, and raises our work efficiency dramatically. I have fortunately experienced these stages of information development. I still remember when I first started learning computer, 60 students in two classes shared only one machine. That machine was called DJS-130 Computer. It was a product produced by China. It was as big as a cabinet air conditioner. The whole class used it. It had no operating system. I’ll tell you how simple it was only. How much memory did it have? 4K. That was the first computer I came across. Later, I graduated and studied for my master degree. My instructor arranged me to develop a software for a factory. Many steel parts were cut by the cutter in the factory. With a large steel plate, I placed all kinds of parts on the steel plate to save material and the steel plate as much as possible while considering the traveling path of the flame cutting machine. Right? When it burned the steel soft and it needed to change its path. So this is a multidimensional optimization problem. Then I developed a software called Layout Software. I was very lucky at that time. I was specially assigned with a PC. I could use it for 24 hours. How much was a PC at that time? Tens of thousands of yuan. So I really witnessed the massive use of PCs in China at that stage. Informatization of every unit in China also began at the time. That was first wave of informatization, beginning with the massive use of PCs. What is the second wave? In the mid-to-late 1990s, with the commercial use of the internet, we entered a new phase, the networking phase featuring in networked application. Early before, when we saved money at banks, we would have handwritten coupons. Later, each bank completed the single informatization work and the internet era began to concentrate. And we could save and withdraw the deposit in different branches of the same bank. Now we can do this across banks through the same network. Remittance can be done in this way. This is the second wave. And through over 20 years of accumulation to the present, we have accumulated a lot of data as what I described just now. Which phase are we in now? A new intelligent phase featuring in in-depth excavation, fusion and application of data. What will the future look like? In my own imagination, a major social change in human history is kicking off. For the young present, it’s exactly the era you are facing. Are you ready? To survive in the future society, besides knowing how to use tools, you have to have an important change in a lot of thinking ways. No matter you are learning computer or other majors, this is a basic ability. In the current era of big data, I think we must have a few kinds of thinking: computational thinking and big data thinking. In the current society, do you still need to do brain calculation and mental arithmetic or recite the multiplication table? You can finish mathematical calculations with your cell phone at any time. So when you encounter a complicated problem in your real life, you may think of whether it can be solved by computing. That’s to model the real problem with some concepts of computational science to solve it in the computational way. This is the computational thinking. What is data thinking? You have to learn how to get and analyze the data, how to extract value from the data and how to apply the data. You need to have such a thinking way and such a change to be better riders in the era when the informational big data bring us opportunities and challenges. China is embarking on a new journey of becoming a power. Then how can we improve our technological strength, especially the information technology strength in the new era? In early days, we basically had little contact with the international. Until the 1990s, we always did our own things within China. We did a lot to fill the gaps in China. After 2000, a group of scholars went international. We began to have a good presentation, accumulate good influence and gain a lot of results internationally, becoming leaders. But, in general, we should notice that, the overall level of technology, especially the level of information technology, is still far behind developed countries. So whether we can complete innovation of own independent technology in the implementation of National Big Data Strategy and acceleration of the digital economy development within a long time in the future has not been our responsibility but the responsibility of the young present. I hope that, you can realize the dream of enhancing our country with technology through innovation and efforts no matter what industry you are engaged in. Prospering technology will proper nation. Strong technology can strengthen the country. It’s also my hope for everyone. Thank you, Mr. Mei. Thank you. Extract plant essence to scientifically supplement both qi and blood. Yunnan Baiyao Qixuekang Liquid that is a good choice for staying up invites you to stay tuned in “Voice.” Thank you all. Please take a seat. In your speech, you talked about a lot of big data in China. I think many young people can’t deeply feel the development of the computer technology from the beginning to the present, not to mention the big data. Because for them, everything around them seems to be normal and already long-lasting since they were born. But this is not true. They are created by generation after generation of scientists adhering to such a spirit. In the course of your speech, many audiences on site wrote you small notes. Next, let’s move on to the small note interaction part sponsored by Yingding Education. The first question. This audience is very direct. Please adapt to their style. Is the big data you talked about so great? Can big data analyze stock accurately? Can I get rich by learning big data? The idiom “get rich” is close to life. May you happiness and wealth. I want to answer the last sentence first. If you really learn and master the big data, you can get rich. Do you know how much the salary of big data engineers or big data analysts is? Higher than my salary. But how much is your salary? You need to give me a basis for comparison. Anyway, it’s high. Yes, exactly. Now the industry is short of such big data analysts because there is a lot of data that needs to analyze and our overall data application is still in the primary stage and far from our expected goals. As for the question whether its analysis of stock is accurate, I can tell you that, a senior analyst limited in a dark room can accurately analyze the data if he is only provided with data and not allowed to send out information. The key point is that such information can’t be shared, or it’ll be inaccurate. Yes. Because it is an open system. Right? Sometimes it’s like our traffic. If there is a traffic jam somewhere, all people hearing this… would avoid that road, but they get blocked in another road. But the former road becomes smooth. Exactly. This open system contains artificial factors in the late period. I guess, after you finished this sentence, the enrollment number of big data major of Beijing Institute of Technology will increase greatly this year. Welcome. Everyone holds a plate of getting rich to learn it. Next, I want to tell you all. Now, “Voice” has a special area on the platform of CCTV for live broadcast with texts and pictures. So some netizens will also ask you questions online. Let's take a look. Hello, Mr. Mei. My question is: After fervent discussion of the big data in the society, many students follow the trend blindly and apply for related majors in their collage entrance aspirations. Will such behaviors have a bad influence on the future development of this industry? I guess this audience just chose this major. Now he wants to learn some news from you. This question is very difficult to answer. As I’m engaged in this profession, I hope more people could choose it. And now the society is really short of talents in this area. In another aspect, I think any industry should exist. But we can’t make all people squeeze on a road. People could perform well in any field. The most important thing is to choose what you like and what is suitable for you. That’s to say, it may be better for you if your thinking way and learning way can be suitable for this industry. In my personal opinion, undergraduates shouldn’t determine the profession too early. In general, the university has not had the past elite education model but should emphasize general education to lay solid foundation, which may be more important. It’s not too late to choose majors in the late period of the undergraduate or the graduate periods. Yes. Undergraduates should absorb all knowledge to try to stabilize their knowledge structures rather than choose one major only. The next time is for six youth representatives. Hello, Mr. Mei. I am a doctoral student of big data application. I will graduate two years later. So I still have two years left before I get to that stage of getting rich. You always think about it. It’s a great honor for me to talk with you face to face. Just now, you also said our country has put forward that cyber space belongs to our territory from the national strategic level. And corresponding things such as network attack and defense technology have had complete and sound national laws. But personal (privacy) level is less explored. With the gradual development of information technology we’re willing to give up a little bit of privacy to get such good service. But those who are engaged in big data know that, with its development in depth and breadth, the excavation result and corresponding influence are not known by people. It won’t know it either. When it asks whether you agree to share your data, you agree. But the result is uncontrollable. So what do you think of such a case? First of all, any technological progress is double-sided. When technology brings convenience and progress to us, it also brings other problems. Everyone still remembers Chaplin’s, “Modern Times” which young people might not have watched and the workers on the assembly line? It showed the dilemma brought to people in the industrial age. Countries all over the world are studying how to protect data privacy. But in fact, in terms of the current technical system, I think no technical solution can really protect this so-called privacy. Then true privacy protection must be done by laws and regulations in a legal system. That is to say, it must restrict behavior of vendors. But now there is a problem. If they are restricted too much, the industry won’t be developed. But if they are not restricted at all, the data will be abused. For example, the data privacy leak in recent years annoys every one of us. We often receives calls saying “do you want to buy a house” or “do you sell your house.” And they accurately know your address. Exactly. They ask whether you plan to sell your house. Yes. They have got a lot of accurate data. It hard to control this by depending on technical means only. Countries have relevant laws and those in Europe may be the strictest. China promulgated and implemented “Network Security Law” last year. It also has relevant clauses about the rights of deleting data. Laws can restrict lots of behavior. They dare not to conduct these because they will pay for them. However, just as you said, you need to sacrifice your privacy for some convenience. You have privacy in front of doctors. And for the sake of your health and your life, all your data will be handed over to the medical institution. This is what we have to endure at the current development stage. This is the same for all technological development in the society. But generally speaking, the trend of technological advancement and technological development can’t be stopped by us. Yes. Next one. Hello, Mr. Mei. Hello, Mr. Sa. I’m Gao Yuze from Peking University. Do you still remember me, Mr. Mei? What an embarrassing question! Just answer no. Indeed… You indeed forget. …I forget. Let me first give you a few hints. What if he still can’t remember after you give him hints? Then I’ll tell him a story. Let me first say some song names, namely “Swan Goose,” “Serve the Country with Total Loyalty” and “Where to Go.” They’re all my signature songs. Are there any special points with the three songs? Do you remember? Yes. Who’s she? I remember the event. But you still don’t know her. It’s a long story. Five years ago, on a cold winter night in 2013, for the first time in my life, I was on the stage of Peking University Hall at Peking University, hosting its New Year’s party. Back then, the crew of directors gave me a proposition on the spot, a task. That is, every year, the host was needed to joke with a teacher nicknamed “Prince of Folk Songs” and let him sing. Today let me grandly introduce the “Prince of Folk Songs”, who just stands beside Mr. Sa. I thought you were talking about me. But I think the label is a bit improper. Nickname. I’m not nicknamed so but “Book of Chinese Songs”. It turns you’re “Prince of Folk Songs”. Sorry. When we sing, we like to perform before the audience, but Mr. Mei added one part himself and sang with his back to us. He faced the screen and began to sing when there’re subtitles on the screen as if he had sung in KTV. “Book of Chinese Songs”. I have a question for Mr. Mei. I’ve had this question for 5 years. Did you really fail to bear the lyrics in mind or did you just want to amuse us on purpose? When Mr. Mei sang the whole song, you could just see his back. Yes. I didn’t want to bear the lyrics in mind as I thought they’re available through search. So today in “Voice,” I face great difficulties as I can’t remember something. I can only rely on hints. But there are no hints today, so I omitted many important points. But you were singing at that time. No. You should let the audience see your frontal image. So it affected your performance quality when you turned round and sang facing the screen. At that occasion, my appearance but not my performance counted. as the School of Electronics Engineering and Computer Science of Peking University ranked first among the four “madhouses” at Peking University. Yes. The school was the biggest and had the heaviest studies. Many people still worked overtime in labs late at night. However, I personally believed the New Year’s party was even more wonderful than the university’s party at the end of the year and it was hard to get a ticket. I can prove that as I hosted both of them. Indeed. I’m from another “madhouse,” the School of Life Sciences. The School of Life Sciences? Exactly. I’m from the third “madhouse,” the Law School. It seems the Law School isn’t one of the four “madhouses.” However, to be honest, these parties are pretty good, many of which are held by students themselves. Which one of the songs do you like most? “Swan Goose”… “Serve the Country with Total Loyalty” and “Where to Go”. I like “Serve the Country with Total Loyalty” most. Well, music, please. I’ll help you with the lyrics beside. But I have to tell you I always sing out of tune. We don’t care. Well, I once majored in liberal arts. Great. It’s embarrassed I can’t bear lyrics in mind. I’ve felt without a subtitles reminder, it’s hard for you to finish a song. But I heard a scientist sing so well for the first time. Indeed. Especially, it’s hard for common people to finish the high-pitched part. I’ve been good at it in CCTV for years. The great China… The great China attracts various states around. It’s hard to finish it, but you made it easily. Very great. The inner humanism of an excellent scientist must be of great help to him. I also feel so honored to see Mr. Mei sing before the audience first among so many songs I’ve heard. He faced the audience. As you just mentioned, since you abandoned your old love, literature, and began to take to your new love, big data, you’ve thrown away many things from your mind. I wonder what you’ve still kept in your mind. I can bear something I got when I was young in mind, but with time going, I’ve forgotten much as I don’t review for a long time. However, I think what I read at that time gave me a lot of personal inspiration. On one occasion, Peking University asked some professors to recommend several books that were important to our lives. I wrote three ones back then, one of which was “Legend of Deification.” I found the book in my grandma’s attic when I was a third-grade pupil. I learnt there was so much to imagine by reading it. It taught me to imagine boldly. Maybe it laid a foundation for my bold imagination and forward-looking ideas later. I had a very successful history of software programming. As products, my software could be used in factories. Back then, my teacher asked me to handle technology and product promotion at my convenience. Why did I give up later? Because I found after a software product was programmed, I had to keep correcting its errors and making it adapt to new needs. I thought I had no passion to mend and adjust a finished product and I liked to try something new. So for the first time, I realized maybe I could only feel delighted by keeping trying something new. So I choose to continue my doctoral study and start my academic road at that time. Surely, I also completed my childhood dream of being a scientist. Thank you, Mr. Mei. Thank you. Next one. Who comes? Please. Hello, Mr. Mei. I’m a second-grade postgraduate student of Department of Industrial Design of Beijing University of Technology. I’m not in the field of big data, but because of this information age, our Department of Industrial Design also offers courses in many related programs. In the process of designing projects, we design such a product by combining technologies of the new age, such as big data, AR and VR with our ancient traditional building. I brought it here. How to show it? Come to the stage. Show it to Mr. Mei. This is a photo of bricks. It shows some walls of an ancient building. I use my cell phone in hand to scan it. OK. I scan it with my cell phone. I carry… It can also turn. Yes. Can it? I seem to carry a model, but it’s actually a photo. When we visit some ancient buildings, we may see some QR codes on the wall. When we scan one of them, we can get the information of an ancient building. In fact, we can directly use many data on the wall, such as colored information. We want to replace QR codes to some extent. In fact, we want to adopt a relatively new point of view to let the young re-focus on these ancient buildings and to evoke their memories of ancient buildings. Thank you. The data of ancient buildings and those of the e-commerce platforms are different in source. Our data are relatively smaller, and each item of data is of great value. I wonder what suggestions you have for the data-depth mining. What you just said is very significant. We may not cover the scenic spots all over the world. The digital reservation of the entire historical and cultural heritage in China and even the world is related to data. If you combine an object building with the historical data around, you can completely show the context of the whole history. These data are essentially solid. The key is that a platform can gather them. It’s hard for you to get it now. Yes. We’re constantly digging them. This is the work of museums. They should solve such a problem. Besides places of interest, such as the Temple of Heaven and the Forbidden City, there are also a lot of small ancient buildings scattered around the people. Some of them even only have ruins. Yes, yes, yes. They’re featured, but they’re scattered around the people. And depending on our own professional capacity, we want to do what we can and collect the data of ancient buildings in the corners and make them into a database to process them in depth. So valuable. You can also combine local annals with data when visiting a place. Each place is establishing its local annals. If you combine local annals and historical events, you can master the entire history of a place. OK. Thank you. Mr. Mei gives you good suggestions. How well should I, one out of the field of big data, get to know big data in the data age so that I can also “get rich” by them? How can big data benefit the masses? There’s no need for all of us to study big data’s mechanisms or bases, and so on, but we can learn to use them. In the future, no matter what industry you’re engaged in, it’s important to change something. We used to use computers or data as auxiliary tools. Now we should try to change a perspective. We should follow data rather than make them as our helpers. There may be a leap in your thinking about what you’re doing in the industry. This is the first point I’m talking about. Second, how well should you get to know them? One, you should truly know what kind of thing is actually big data. Two, you should think in the way of data, that is, what data you need to support your application. Big data must be closely related to the field. You have the most power to interpret data from your industry. Thank you for letting me know people in other majors can also “get rich.” Hello, Mr. Sa. Hello, Mr. Mei. I’m Duan Yuchen, a grade-eight student. Since I was born, I’ve felt the rapid development of internet and artificial intelligence. As you said, many job holders will be replaced in the future I think that the scientist may be the most interesting and meaningful profession in the future as he can make innovations and creations and change the world with science and technology. So I want to ask you how we can become excellent scientists like you. I’m very happy to see that such a young generation like him is determined to be scientists. Study hard to lay a foundation and insist on your goal. It’s a long and boring process to achieve it. I like the character of daring to question and challenge of my students. They shouldn’t believe the contents of articles and theses can solve all the problems, nor should they believe what their teachers said are all correct. They should discuss with their teachers. So the students I like dare to discuss with me face to face. I call it critical thinking. The way of thinking is very important to those of us who are engaged in science. We shouldn’t believe all that the authorities said are right. So I had a habit. Now I’ve changed a lot as I’m engaged in administrative management. That is, I often said no to what other had said and found his flaws or errors from the negative side. Technological advances, or scientific discoveries, are endless. We humans have a very limited understanding of our environment around us, so we still have a lot of room to keep questioning. Only when we stand on the shoulders of our predecessors can we push forward the progress of science and technology continuously. There was a story. I wonder whether it was true. Your obsessive-compulsive disorder had made you suffer from serious obsession to the extent that you didn’t have a girlfriend. Was it true? It was a past story. Yes, surely. When I talked with people, I often criticized them and listed their negative points, so they didn’t want to meet me. So we shouldn’t mix life and career. The critical thinking doesn’t apply to life. I have such lessons. The last one, Su Wenyi. Hello, Mr. Sa. Hello, Mr. Mei. We young have the chivalrous heart of wandering in the world. I went to university in Nanjing and then worked for three years in Guangzhou. Now I start a business in my hometown Zhejiang. During the years, I had several social security cards. Every time I went to a place, I had to reapply for a new card. And I didn’t know how to handle my cards when coming to another place. When can our country establish a unified big data in the whole country? Especially social security, medical care and the basic population information. If we go to various places with our children for some time in the future, can our information in the registered permanent residences match that in other places? Can some of it be used? What can’t be used? The sharing, exchange and gathering of data should be solved. The question you’re talking about should be on the agenda. According to “Platform for Action to Promote Big Data Development,” the government set up some time nodes. Our country aims to at least solve the sharing problem at the provincial and ministerial level this year. In 2020, the data should be open to the society. Many of the government affairs data can be open to the society. And these open data will have a lot of benefits for future entrepreneurs, including you, because the government data are the most valuable and of the highest quality. When they’re combined with your scenarios, many new value-added services will emerge. There’s a time node for it. I believe it’ll be soon. I’m looking forward to that day. Thank you, Mr. Mei. Big data, internet, everything in the future, the latest concepts we’ve heard today, artificial intelligence, and so on. Let’s not sit here and wait for them to change our lives. If you can’t get involved in this, it’s painful to wait as you’re passively following the age. We can’t just wait for the future but measure it with our steps gradually. It’s less than two years before 2020.