“…… As far as supersymmetric string theory itself is concerned, it is impossible for so many theories to exist, so I think there should be a wider space for supersymmetric string theory, but most physicists are now keen to construct the theory itself, and ignore the further exploration of the theory, which is really helpless! ”

Chatting with Professor Schwartz, who focuses on academics, he entered the academic exchange in less than three sentences, and in the conversation, Junxin calmly chatted with Professor Schwartz about the current situation of superstring theory, which he and Professor Witten also talked about.

"Isn't that right? We still don't have a complete understanding of superstring theory, and if we don't base ourselves on the basics, how can we integrate the current theory? Professor Schwartz is not at all worried about the current situation, he has always been peaceful, otherwise he would not have spent more than ten years in the study of superstring theory.

"You're at peace." Jun Xin said with a wry smile.

Professor Schwartz smiled slightly: "It's not that I'm calm, but I've been holding on for so long, and I don't care about such a little time." Superstring theory has its own laws of development, just take your time! ”

"I don't think so, I still think that the key is to find a new way out of the superstring through other methods." Junxin naturally disagrees with Professor Schwartz's view, and in his eyes, it is natural to quickly deepen the discussion of a certain theory in order to be able to work more effectively. This is also the difference between a mathematician and a physicist. The former places too much emphasis on efficiency, while the latter wants to improve more. It is not that perfection does not require efficiency, but the perfection of a theory itself is an impossible and efficient work, and slow work and meticulous work are the essence.

"Don't talk about this, listen to Dyson, are you going to go back to China?" Professor Schwartz did not discuss this issue with Junxin, because it was a matter of thinking and philosophy, and he did not have the energy to correct the thinking of others.

"Yes, I guess it's just a few days, maybe go back to Princeton, maybe go back to Hong Kong directly, and then go back to the mainland through Hong Kong." Junxin said with a smile.

"Why don't you stay?" Professor Schwartz asked, "I don't mean to be presumptuous, as far as I know, the academic in Chinese mainland lags behind the West for many years, if you go back now, it is not necessarily a good thing, at least start over, I am afraid it will take at least fifty to a hundred years to reach the level of American research, I don't think it is a good thing for you to return to China now." ”

"You have a point, but it doesn't change my mind, Professor!" Junxin smiled and said, "But I think when I return to China, I should probably graduate!" If nothing else, I'll stay at Mizuki University to continue my research work, and of course, I'll try to come to the U.S. for a few months a year, maybe so that I don't have to delay. ”

Junxin's words were ambiguous, but they also politely rejected Professor Schwartz.

Junxin, who came from later generations, has a very full understanding of this era and the world, and naturally knows what kind of impact these things he has on this era, so as to know what kind of position he is in in this era, but he decided to return to China for development back then, and he will not change this idea now. Although the gap between the two worlds is not ordinarily large.

"Well, since you have decided so, I won't say anything, but if you come to the United States in the future, you must remember to come to USC to sit down."

"That's for sure!" Junxin said with a smile.

The exchange with Professor Schwartz took place in a very relaxed and pleasant atmosphere. In Junxin's eyes, Professor Schwartz is the kind of scientist who devotes himself to his own scientific research, and such a person does not have too many personal gains and losses in his heart, otherwise he would not have stayed in a place like the University of Southern California with a strong literary atmosphere but a natural lack of science environment. For such scientists, Junxin is very respectful.

Before leaving, Junxin also invited Professor Schwartz to come to BJ for an academic visit. Professor Schwartz naturally agreed. In fact, Professor Schwartz is still very interested in Junxin's invitation, even if he specifically discusses academic issues with Junxin, he will definitely be able to get back the ticket price.

Refusing Professor Schwartz's invitation to stay for dinner, Junxin and Gu Mengxue casually walked around the campus of the University of Southern California.

The University of Southern California, also translated as the University of Southern California, abbreviated as the University of Southern California (USC), is the oldest top private research university on the West Coast of the United States, a world-renowned institution of higher learning, located in Los Angeles, California, USA, the "City of Angels", founded by the Board of Supervisors in 1880, and is a member of the Association of American Universities (AAU) and a member of the Pacific Rim University Alliance.

Many of USC's colleges are ranked in the top 10 in the nation. Among them, the School of Film is ranked No. 1 in the United States, the School of Architecture is ranked No. 5 and No. 9 in the United States, the School of Engineering is ranked No. 8 in the United States, the School of Public Policy is ranked No. 4 in the United States, the School of Accounting is ranked No. 8 in the United States, and the School of Communication is ranked No. 1 in the United States. It is definitely one of the top universities in the world. Especially in the entertainment industry, the University of Southern California is a well-known existence.

The University of Southern California has a rich cultural heritage, and the famous astronaut Armstrong, the first person to land on the moon, is a student of the school. In addition, 2013 Nobel Laureate in Chemistry Ariel Warshel, 2000 Nobel Laureates in Economics Daniel McFadden and James Heckman, 1994 Nobel Laureate in Chemistry George Andrew Euler, and 1969 Nobel Laureate in Physics Murray Gellman are all from the university. Of course, Fred Cohen, the famous "father of computer viruses" in the computer industry, is absolutely indispensable.

But in fact, the University of Southern California is a more serious political and humanistic school, where there have been prime ministers of Jordan, prime ministers of RB and South Korea, prime ministers of Pakistan, prime ministers of Egypt and the president of the Republic of Macedonia.

It is the alma mater of the famous directors Spielberg and George Lucas. It was the alma mater of Lang Howard and John Wayne.

The unique humanities and natural sciences have created the unique humanistic style of the University of Southern California, because it has also made the most unique place of the University of Southern California, attracting many students to study abroad and pursue their dreams.

The Internet Domain Name System, which is now widely used around the world, was invented by Paul Mokapajos at USC. Today, the university still controls one of only 13 root nameservers in the world. In previous World Olympic Games, USC alumni have won a total of 144 gold medals, 93 silver medals and 72 bronze medals, ranking first among any university in the United States in terms of the number of gold medals and the total number of awards.

In his previous life, the University of Southern California was not the target of Junxin's choice, but in the end, his choice was still Princeton, which was the academic mecca of the United States, and the University of Southern California, as a former alternative, had a unique position in Junxin's mind.