Those who should come always come.

The last day of July.

Even though ten thousand of them were reluctant, the ship finally stopped its unfinished research and began packing for the International Congress of mathematicians to be held in St. Petersburg in early August.

As for the 60 minute report meeting, after some inner struggle, Lu Zhou finally chose to be on the safe side and made a simple summary of her work in the field of Riemannian zeta function in the past few years, and then uploaded the paper to the website of the International Congress of mathematicians.

In fact, this is the right position to make a report at the International Congress of mathematicians.

Whether it's a 45 minute or 60 minute report meeting, it's not prepared for the release of a major research achievement. It's just a platform for scholars who have made outstanding achievements in various fields to make a summary report on the research achievements of the past few years.

After all, it is very difficult for many significant subjects, especially in the field of number theory, to make some achievements in a few years.

Even, it's naive to think that the time and energy paid must be rewarded.

"Little AI, do you want me to bring a coat?"

It's still summer in Jinling in August. It's too hot to go out on a land boat with short sleeves. But I heard that the weather in St. Petersburg has begun to cool. I don't know if it will be cold after I go there.

The UAV with a small TV on the side of the boat floats unsteadily and rolls a string of words with even speed.

AI: [ St. Petersburg is located in the Baltic Sea in the northwest of Russia, 59-60 degrees north latitude, which belongs to the temperate continental climate. The temperature range in August is between 13-20 degrees. Although the temperature is not high, it is recommended that the owner wear a windbreaker or leather jacket to prevent cold. (???)?]

"well Then take this windbreaker with you. "

I took back my sight from the small TV and saw that it was full of suitcases. After thinking for a while, Lu Zhou pulled out a few short sleeves and threw them back into the wardrobe. Instead, he put in a black trench coat.

He remembers wearing it the last time he went to Berlin to collect the prize.

In a twinkling of an eye, I haven't thought it would fit me so well.

Think of here, land boat did not stop in the heart sighed.

It seems that the legend of "Whoever proves Riemann 's conjecture will be immortal" has no basis at all.

He also proved that a weak form of Riemann conjecture, quasi Riemann conjecture, has achieved initial results in maintaining youth.

Just as the boat was proud of itself, the little TV beside him suddenly flashed.

AI: [host, there is a video call request. Can I see if the IP address is from North America?]

Xiao Tong?

Or Willa?

Without asking who it was, Lu Zhou said directly, "take it for me."

AI: [copy! (??????????]

the screen flashes and quickly switches to the video call interface.

Looking back at the man whose eyes appeared in the screen, Lu Zhou saw a trace of accident in his eyes, but didn't expect that the call was from him.

"Wei Wen?"

“…… Professor. "

Lu Zhou smiled and said, "why do you suddenly think of calling me?"

"Because of something..." He opened his mouth a little awkwardly, but at that moment Wei Wen suddenly noticed Lu zhouzheng's luggage and asked curiously, "are you going to St. Petersburg to attend the IMU conference?"

"Well, there's a 60 minute report waiting for me Say, how are you doing? Listen to Qin Yue. You seem to have got the qualification of lecturer in computational materials at MIT. Are you still used to life there? "

When he said this, for some reason, Wei Wen's expression in the video suddenly became a little bitter.

He shook his head and sighed.

"Not so much, don't mention it, I It's almost out of work. "

Unemployment?

The hand sorting the suitcase stopped, the boat squatting beside the suitcase stood up, threw the unexpected sight to Wei Wen in the small TV, frowned and asked.

"Unemployment? What happened? You Is there any trouble? "

In the impression of Lu Zhou, Wei Wen's academic ability is good, especially his talent in mathematical modeling. Since he transferred to the research of computational materials in his own opinion, he has made full use of his talents in this field. It is said that he has published three articles in the top four journals.

I can't think of any reason for MIT to refuse such an excellent scholar.What's more, I'm still my apprentice

Even with this aura, you won't have to be unemployed?

Seeing the situation of Lu Zhou seems not clear at all. I guess it's because of what Wei Wen said with a wry smile, "have you closed up recently?"

Lu Zhou frowned and asked, "is that right What does it matter? "

"It doesn't matter, but you didn't hear It's a little bit unexpected, "Wei continued with a sigh." it's not just me. Most of MIT's Chinese scholars are not very comfortable recently. "

It took five minutes for Wei Wen to simply tell Lu Zhou what happened.

It turns out that in early July, the white house suddenly issued a special decree signed by the president, requiring the embassy to tighten the issuance of study visas.

On the surface, it doesn't seem to have much to do with mathematicians who are lecturers at MIT.

But in fact, almost after the signing of this law, MIT, Stanford and other major universities of science and technology suddenly changed their attitudes towards lecturers and professors of Chinese nationality overnight, which not only tightened the distribution of scientific research funds, but also adopted restrictions on normal teaching behaviors.

Not only the faculty and workers who have not worked for several years, but also some scholars who have worked in the United States for more than ten years but have not acquired American nationality, have been seriously affected.

According to anecdotal sources, the reason for this situation is that there are people from the FBI interviewed the board of directors of major universities of science and technology. Although it has not affected the work for the time being, many postgraduates, lecturers and professors working in MIT are still shocked by such news

“…… In fact, as early as two years ago, I saw some signs, but I didn't expect to develop to this stage now. "

For a moment, the boat said in silence, "how do you say that?"

With a sigh, Wei Wen continued: "nominally, MIT's global enrollment standard is based on the ability of" academic ability, personality and global vision ". However, there are no overseas students from mainland China in these two years. In fact, since then, our attitude towards this kind of strong proofreading has been unfriendly."

Lu Zhou nodded and said, "it's really a little unusual."

Although there is no explicit regulation, there is no student from mainland China on the admission list published by MIT and Stanford in recent two years, and the only few Chinese students are from high schools in the United States.

Now the situation of MIT Chinese scholars is obviously further intensified on this basis.

“…… Now the academic environment is becoming more and more unfriendly, and ten years ago, it's totally one sky, one underground. Some time ago, I talked to a Chinese professor of materials at MIT about this issue. China's achievements in a series of cutting-edge scientific fields, such as nuclear fusion and the Moon Palace, have stimulated the most sensitive nerves in the United States. "

"Especially when ares plan failed last year, you can see that the whole North America is booing, and the pessimism is leading to the rise of McCarthyism. It's obvious to you even in class that the hostility of some white students to you is not just a matter of racism. "

Speaking of this, Wei Wen's tone is also a bit unpleasant.

"Now the whole academic community is preaching that Congress will soon introduce more stringent restrictions, which will make people panic. I don't know how long I can do this job. Maybe tomorrow, maybe the day after tomorrow, maybe one day suddenly I will lose my job. "

Lu Zhou: "you are studying mathematics. Do you have any influence on it?"

"After all, I'm not studying pure mathematics, and I work with MIT's materials lab. then some people suspect that I'm a spy, and some FBI people came to me," Wei Wen said, shaking his head in a funny way. "Spies who help them with experimental data, spies who help them with scientific research Tut Tut, if it wasn't for the paper, I would like to apply for leaving the group. "

The boat was silent for a while, and then said, "well If you can't get along with it, come to Jinling. Now the academic atmosphere here is very good. What's your annual salary at MIT? I'll give you the same at the current exchange rate. "

Although before making this call, Wei Wen was really ready to return home.

But somehow, after hearing the invitation from Lu Zhou, he began to think about this problem seriously, but finally he hesitated.

Silent for about a minute, he said, biting his teeth.

"Thank you..."

"But I still want to make some achievements first, at least mix a thousand people and come back."

Even though it's hard to make some achievements in the current environment, which is stared at by others like anti thief, he is still reluctant to give up so simply.

After all, if you don't have any achievements, you can escape back

He always feels a little reluctant.

Although a little worried about whether his students will encounter any trouble, Lu Zhou still understood his idea and nodded."You have to be careful outside. Across the Pacific Ocean, even if you are in trouble, it's hard for me to help you."

Wei Wen nodded and said, "well, thank you for your concern. I will pay attention!"