Unlike the last time I went to Australia, I felt quite comfortable going to Philadelphia this time.

The main reason is that more than 90% of the journeys are in business class on wide-body aircraft. Except that the price is a little more expensive, everything else is an advantage.

Not only can people stretch out while sleeping on a plane, but they can even turn over at will. When they are bored, they can watch movies. The only pity is that there is no direct flight from Beijing to Philadelphia, so I have to change planes in Chicago.

Of course, it will be even more expensive with transfer fees.

However, Qiao Yu didn't need to consider the price factor. He didn't buy the air ticket anyway. This was actually quite reasonable, after all, his scientific research entourage also flew in business class.

According to the rules of the World Congress of Mathematicians, the scientific research entourage is generally the students or assistants of the invited leaders.

Because it generally costs money to attend conferences. Many professors and students have not received invitations, so they have to pay to attend conferences.

But for special speakers like Qiao Yu, their willingness to come is equivalent to giving face to the organizing committee, so there is no need to pay for room and board. Even the round-trip travel expenses can be reimbursed.

Usually the invited speakers are big guys in the field of mathematics. Of course, big guys need a bag when they go out.

Therefore, if you sign up in the name of a scientific research associate, you can attend the conference for free, or the fee will be lower.

It is not excessive at all for a special speaker like Qiao Yu to go out with two assistants.

At six o'clock in the afternoon local time, they walked out of the Philadelphia International Airport. Tian Yanzhen had arranged for someone to pick them up at the airport.

Tian Yanzhen came to the United States a week earlier than Qiao Yu. It was not to get ahead, but mainly because he had to attend the IMU, the International Mathematical Union Conference, held in New York, California.

To put it simply, it is a meeting held by the superior department of the World Congress of Mathematicians.

This meeting is usually held before the World Congress of Mathematicians. The meeting mainly summarizes the work of the International Mathematical Union over the past four years, arranges the work for the next stage, and decides the meeting addresses of IMU and ICM four years later.

The person who led the team to pick up Qiao Yu was Professor Su from Yanbei Institute of Mathematics. There were three cars in total.

In fact, relatively speaking, Qiao Yu hopes to follow Zheng Xiwen and Zhang Mingyu to the venue of the conference - the Pennsylvania Convention Center in Philadelphia.

After all, it would be a pity not to walk around after finally going out. Although Lao Zheng did tell him a lot about safety, Qiao Yu felt that Lao Zheng and Xiao Zhang had to be given some room to play.

At least it shouldn't be dangerous to sit in the car and drive around the entire Philadelphia and then wander around in a safer place.

So after getting in the car, Qiao Yu, who was in high spirits, made a request to Professor Su.

"Professor Su, why don't you take us around Philadelphia? If we go to the convention center, it will be difficult for me to go out."

Professor Su glanced at Qiao Yu and said with a smile: "Don't think about it, it's so late at night, I can't bear that responsibility. I'm just here to pick you up, and I have no control over anyone else, including the driver.

And I suggest you go to the hotel to sleep first to get rid of the jet lag, there are still a lot of things waiting for you tomorrow. As far as I know, Director Tian has agreed to two small meetings for you."

Qiao Yu blinked and asked: "Isn't the opening ceremony of the International Congress of Mathematicians the day after tomorrow? There are meetings before that?"

"Well, the members of the Structure Committee would like to have some academic discussions with you before the meeting, as well as some small group meetings in mathematics. There are many foreign scholars studying the generalized modal axiom system. You are getting a lot of attention this time.

Also, don’t even think about going out for fun. You may not know that Britain’s BBC interviewed a mathematics expert yesterday. What do you think they talked about?” Professor Su said with a frown.

"What?" Qiao Yu scratched his head and asked.

Before Professor Su could speak, Zheng Xiwen, who was sitting next to him, had already smiled and helped Professor Su answer: "Actually, it's nothing, it just means that your research may change the global cryptography landscape.

I think that the encryption of the global financial market may have earth-shaking changes because of you. It may even threaten the security of the global financial market. This highlights your importance.”

Qiao Yu blinked and went through the process in his mind, and was suddenly shocked by Britain.

Sure enough, it was able to produce "Yes, Prime Minister" and is known as a country of troublemakers. It has never lost its trouble-making skills over the years.

Are you encouraging something by posting this kind of article at this time? The only pity is that although his goal in studying prime numbers is this, as far as the current situation is concerned, he has not yet developed a powerful enough algorithm to bring benefits to the global financial market.

to threaten.

But now that the BBC has broadcast this program, Qiao Yu feels that she has to consider this issue after going back.

After all, when others say you have something powerful, it's best to actually do it.

But what made Qiao Yu most curious at this time was that Zheng Xiwen had been staying with him since he got on the plane. How could this guy receive messages so quickly?

In half a month, the two of them had indeed established some tacit understanding. As soon as Qiao Yu's curious eyes fell on him, Zheng Xiwen knew what Qiao Yu wanted to say and said with a smile: "As soon as I got off the plane, I contacted the team from before.

Yes, we have a department dedicated to collecting and analyzing various information.

But you have nothing to worry about, someone has already negotiated with you. That irresponsible talk show will not cause any trouble. Many mathematicians have already refuted the rumors and questioned the professional standards of the Imperial College professor."

Well, Qiao Yu probably understood what Director Tian meant when he said there were invisible security personnel.

Not only do they have personal protection, there is also a dedicated team responsible for collecting and analyzing information, and they even start a public opinion war for nothing. This is probably the legendary all-round protection, right?

Qiao Yu still felt uninterested for a while. With Britain as a stick to fish in troubled waters, his desire to go out would most likely be in vain.

He just made a note for Britain in his mind. He likes to be a troublemaker, right? After all, London is also the financial center of Europe. When he really settles this matter, he will be the first to ask London to collect protection money!

Let them know what it means to be a shit stirrer, shit will splash on him. No, he is not shit, so angry!

Fortunately, Qiao Yu was too lazy to care about this topic anymore. He looked at Professor Su and asked, "By the way, what did you just say about the Structural Committee? What is it?"

Professor Su immediately explained: "It is a newly established committee of IMU, which is mainly responsible for selecting speakers and report content at the ICM conference. It is an honor to give a report at the International Congress of Mathematicians.

Therefore, when selecting speakers before, there would be some external influence. The identities of the members of the newly established department will be kept confidential before the IMU conference, so that members of the protection committee can independently select candidates who are qualified to give reports at the conference."

Professor Su was very detailed. After all, that was why he came to pick up Qiao Yu. Otherwise, he wouldn't even need to come.

Zheng Xiwen, who was following Qiao Yu, told Zhang Mingyu that he was a scientific research associate, but he was only responsible for Qiao Yu's safety.

He still had to explain everything to Qiao Yu in the meeting.

Seeing Qiao Yu keep nodding, Professor Su continued: "I also met with some small teams, all of whom are mainstream mathematicians in the world of mathematics.

It will be good for you to have some sufficient communication before the meeting. Anyway, your schedule is very full tomorrow. So don’t think about going out today, it’s only right to go back to the hotel and have a good rest."

Qiao Yu nodded helplessly.

I chatted with Professor Su for a while, and within half an hour, the car drove into a parking lot.

The three of them followed Professor Su and went directly to check in. Probably considering that it was convenient for Qiao Yu to receive visitors, a suite was specially arranged for him. Professor Su sent Qiao Yu directly to the room and then opened the curtains.

“The biggest advantage of this Days Inn is that it’s right across from the Pennsylvania Convention Center where this meeting is being held. You can see the main part of the building from your room.”

Qiao Yu looked across the window through the window. It had to be said that the view from this room was good.

At this time, the sky has not completely darkened yet, and you can see the afterglow of the sun reflected on the glass curtain wall opposite.

It looks like a very modern building, but there are many such buildings in the capital. However, there are many historical-looking buildings next to the conference center, which interest Qiao Yu even more.

However, after looking at it for a few more times, Qiao Yu also lost interest and asked casually: "Will Director Tian be here later?"

"Well, Academician Tian is still chatting with some old friends today. He asked you to go to bed early. I guess you won't... come over tonight."

Before Professor Su could finish speaking, someone came into the room with his or her head half-expanded.

"Little junior brother."

"Hey, Senior Brother Chen, how did you know I arrived?"

"Director Tian told me."

Seeing his own people in a foreign country, Qiao Yu felt more friendly. He waved to Chen Zhuoyang.

Chen Zhuoyang walked into Qiao Yu's room and glanced curiously at Zheng Xiwen and Zhang Mingyu who were following Qiao Yu. However, they ignored him and he was not too curious. He just said hello to Professor Su.

"Professor Su."

"Zhuoyang is here. Okay, just tell Qiao Yu if you have anything to do. I also have some things to do, so I'll go ahead and get busy."

"Thank you for your hard work, Professor Su."

"It's not hard. I'm leaving first. Qiao Yu remembers to have a good rest."

"Qiao Yu, we will stay in the room next to yours. If anything happens, remember what I told you before."

Knowing that Qiao Yu was going to chat with Chen Zhuoyang, Zheng Xiwen took Zhang Mingyu and left directly.

Half a month of running-in has made the two parties have a tacit understanding. Although there is no formal class, there are complete plans for how to deal with any emergencies, and they have been discussed with Qiao Yu.

He even simulated it many times. With Qiao Yu's intelligence, he could not find any faults with his on-the-spot reaction.

And it is basically impossible for any emergencies to happen in a hotel. Security work is never about handling emergencies quickly, but it is a job that needs to be nipped in the bud.

Eliminating danger before it occurs is the most perfect security.

"Is it fun to come with Director Tian this time?" Qiao Yu asked immediately after the others left.

Check out the correct version one by one!

Chen Zhuoyang smiled bitterly: "What are you playing for? Director Tian has been in Manhattan for meetings. I just came with him to see the world."

"Manhattan is great. It's an international metropolis. Have you gone to Wall Street? Is it fun?" Qiao Yu asked curiously.

"I just took a look around in the car, and there was nothing strange. It was just a bunch of high-rise buildings. It didn't seem like much. And the street is very narrow, and you have to go around and around to get there."

Chen Zhuoyang thought about it carefully and replied. He really didn't think it was interesting. The buildings in Beijing and Mingzhu were not worse than the buildings on Wall Street, and they looked newer.

Qiao Yu glanced at his senior brother with disdain and said, "Who told you to talk about construction? Of course, a place like that depends on the people. I heard that the agents are very crazy."

"Ah? I've passed there twice in the car, how could I see an agent or anything like that?" Chen Zhuoyang said aggrievedly.

It can only be said that Qiao Yu's thinking was too out-of-the-box and he couldn't catch it at all.

"Forget it, it seems that I really don't have time to go out and play when I come to the United States this time." Qiao Yu waved his hand in disinterest.

After finally coming out, Qiao Yu planned to see how decadent the life here can be...
To be continued...