Xueba: I study hard in the wasteland world

In September, Jiaoqing New District already feels a bit like autumn. A wisp of silk clouds in the sky is as beautiful as the veil on a bride's white wedding dress.

This new city, located in the center of the Jiaodong urban agglomeration and surrounded by a forest park, has become "one of the top ten richest places in the world" with its beautiful environment, advantages in industry, education and research, and unparalleled business environment.

In fact, the residents here were not very wealthy at first, but the locals became rich due to the demolition;

Among the residents here, the majority are engineers from a series of computer industry research and development institutions with the Fruit Candy Computer Research and Development Center as the core. These engineers have become rich because of high wages and high bonuses;

There are also many technological innovation companies that create wealth overnight.

The price of land here has long been "an inch of land is a premium", but on the southern slope of the mountain park in the core of the city, there is a huge manor villa, which is Su Yu's home.

When Su Yu was young, he traveled around the country, living in Xijing City for a few years, Yanjing City for a few years, and Dian Province for a few years.

Now, Su Yu is really too lazy to go out and make troubles, and has completely settled in Jiaoqing New City.

Tomorrow is the day to learn the complete problem of np. Today, Su Yu held a group meeting with his eleven students about tomorrow's report.

"Let's look at time complexity here."

"Here, it's not an indication of how long a program takes to solve a problem, but how quickly the length of time a program takes increases as the size of the problem increases."

"That is to say, for computers that process data at high speeds, the efficiency of processing a specific data cannot measure the quality of a program. Instead, it should be seen whether the program running time is still the same when the size of the data increases to hundreds of times. It’s the same, or it’s hundreds of times slower, or it’s tens of thousands of times slower.”

In the small conference room of Su Yu's house, I watched the teacher Su Yu speak on the stage, while the students in the audience listened nervously and frowned.

They had done enough homework in advance, and as Su Yu's students, they had a full understanding of Su Yu's academics.

But even so, they can only follow the knowledge points that the teacher keeps throwing out.

After Su Yu finished explaining the "time complexity" solution, Jiang Changmao, who was sitting at the front of the conference room, frowned and said, "Teacher, it's so difficult for us to listen. I think people who understand your report will be very happy." few."

"Second Senior Brother" Su Zeshan also nodded hurriedly: "Yes, teacher, some knowledge points are obvious to you, but they are difficult for us. Don't simply skip them. This is important to us." It’s very cruel!”

The other students didn't dare to speak as they looked at the opinions given by the "eldest brother" and "second brother".

After listening to the opinions of the two students, Su Yu frowned. Good guy, if he was asked to explain it completely without omitting any omissions, he wouldn't be able to finish it in a week. This is just throwing out knowledge points, and it would already require him to use a full lecture. It's a day.

Su Yu was too lazy to explain it in detail. Anyway, as long as his students could understand it, Su Yu didn't care whether other people attending the meeting tomorrow could understand it.

Glancing at Gao Bin who was staring blankly at him, Su Yu asked him: "Gao Bin, do you understand?"

"Yeah!" Gao Bin nodded and said with a clear seriousness on his face: "Teacher, this problem can be solved with the paper you published the year before last on the study of factorial complexity."

After listening to Gao Bin's words, Su Yu nodded with satisfaction, and then criticized Jiang Changmao and Su Zeshan for their suggestions: "Look at you two, even your junior brothers can't compare."

Jiang Changmao pursed his lips and didn't plan to say anything else. As long as he could understand it, it didn't matter to him whether the other scholars attending the meeting didn't understand it. Why worry so much and get ridiculed by the teacher for nothing?

"Okay, let's continue! I don't care if the other participants understand it or not. You eleven are the backbone of the next major basic science project. I need you to lead the team to complete the construction of the np=p computer language system. , so if you have any questions, just ask.”

After Su Yu finished speaking, he continued his explanation.

And as Su Yu was "opening the door" for his students, scientists from all over the world began to integrate into Jiaoqing New City one after another.

"so fast!"

The flight from the United States landed at Jiaodong International Airport. Princeton University mathematics professor Hector Horn got off the plane and got on the intercity express to Jiaoqing New Town.

This is an intercity room-temperature superconducting maglev train that starts from Jiaodong Station, passes through Jiaodong International Airport, Jiaoqing New District North, Qingniao International Airport, and ends at Qingniao Station, connecting the north and south of the Jiaodong Peninsula.

After the opening of this line, the commuting time between the two cities was shortened to less than half an hour.

Coupled with the urban subway network connected by this intercity express line, the Jiaodong Peninsula urban agglomeration has been completely connected.

Feeling the quietness and stability in the carriage of the high-speed train, Professor Hector Horn began to learn to "open his eyes and see the world" for the first time.

And when he got off the train at Jiaoqing New District North Station, Hector Horn received a Ding Dong text message on his cell phone.

"Welcome to Jiaoqing New Town. The city's free wireless charging has been automatically connected. The city's free WiFi has been automatically connected. If you don't need it, please choose to turn it off."

The contents of the text messages were all in Chinese, and Hector Horn could not fully understand them. However, when they were translated into English, Hector Horn was shocked and checked his phone. Sure enough, his phone had automatically connected to WiFi. , there is no need to register or log in at all, you can connect directly and use it directly.

Similarly, his mobile phone battery also showed that it was in a wireless charging state.

His mobile phone is a newly purchased "Apple Candy Phone" equipped with a room-temperature superconducting battery, and wireless charging was completed in an instant.

Not just his mobile phone, but all his wearable devices are automatically connected to free WiFi and free wireless charging.

At this moment, Professor Hector Horn feels exactly the same shock as the Chinese people with lofty ideals who "opened their eyes to see the world" in the late Qing Dynasty went to the United States.

"Hi, taxi!"

Shocked, Hector Horn took a taxi and checked into the hotel he had booked.

And when Professor Hector Horn glanced at the driving data on the taxi's center console and saw that the car's battery was still "100%" and the WiFi signal in the upper right corner was also full, he asked curiously: " Don’t you need to charge your car?”

Although the taxi driver did not understand English, it didn't matter. The connected taxi automatically completed the English translation. After hearing the shock of the foreigner in the car, the taxi driver pointed to a circular transmitter on the light pole outside the car and said:

"Look, that is a wireless transmission system jointly developed by China State Grid and telecommunications companies. It can not only generate high-frequency WiFi signals, but also transmit high-frequency wireless charging."

The driver continued: "My BYD Y5 has a body made of self-generating materials and is equipped with a room temperature superconducting battery. The charging method can also be wireless charging. This is a taxi customized by BYD for Jiaoqing New City. As long as it is in the city, If you run it for a long time, you don’t need to charge it.”

"Furthermore, my car is made of room-temperature superconducting self-generating materials, and the self-generating conversion efficiency is also very high. Although the manufacturer states that the cruising range is 1,000 kilometers after one full charge, but when I actually drive it, the cruising range is only about 800 kilometers. , it may only be 500 kilometers in winter, but for our taxis, it’s completely enough.”

Listening to the driver's gushing pride, Professor Hector Horn was completely shocked. In their place, fuel vehicles still have an absolute advantage.

"Bravo."

"This is the model apartment of the future world! I really want to stay here!"

Hearing the foreigner's shock, the taxi driver felt proud.

But when he heard him say that he wanted to stay here, the taxi driver shrugged and said, "Want to stay here? It's a bit difficult! The housing prices here are the most expensive in the world. I can't make enough money driving a taxi all my life." .”

Then, the driver pointed to the beautiful urban mountain park and said, "The villa area near the mountain park once had a sky-high price of 1 million per square meter, and it is still rising!"

The driver looked at the foreigner and judged that the foreigner should be here to attend the academic conference of Academician Su Yu. He should be a scholar. The driver said to him: "But I think you are a scholar. You can apply to join the youth team." Jiaotang University, that university will provide 96 square meters of house purchase and settling-in expenses.”

Then, the driver continued with a face full of envy and longing: "The salary at Qingjiao University is super good. As long as you can join the job, it means you will become a multi-millionaire!"

Hearing this, Professor Hector Horn nodded proudly and said, "That's good, I'm a professor of mathematics at Princeton University."

Hearing Professor Hector Horn's pride, the taxi driver kindly reminded: "If you really want to apply to Qingjiao University, I suggest you don't mention that you are a professor at Princeton University."

"Ah? Why?"

After listening to the taxi driver's words, Professor Hector Horn looked displeased. With the aura of "Princeton University", he was proud no matter where he went in the world, but this taxi driver actually obliterated his pride.

The taxi driver explained: "People will dislike you for being backward. They mainly recruit young and middle-aged scholars who are accomplished in the field of Su Yu studies."

"Ah?" Professor Hector Horn was surprised.

As a professor of mathematics at Princeton University, Professor Hector Horn is indeed worthy of pride, but this kind of pride is equivalent to being the number one scholar in the late Qing Dynasty. The number one scholar in the late Qing Dynasty is very proud in China, but the world does not recognize it.

Similarly, the identity of a professor of mathematics at Princeton University, which was admirable a few years ago, is no longer something to be proud of.