By the time the exchanges with Professor Yau and Horowitz were over, they took a plane to Philadelphia, and then rushed from Philadelphia to Princeton University, and the time was already close to nine o'clock in the evening. Fortunately, New Jersey, where Princeton University is located, and Massachusetts, where Harvard University and Massachusetts Institute of Technology are located, are both in the Great Lakes region of the northeastern United States, so Junxin was able to rush back that night, otherwise he would not have been able to return until at least Christmas morning.

The exchange with Professor Yau Chengtong and Horowitz was very pleasant, both of them are scientists with outstanding achievements in hyperspace, and now they have just changed to using string theory thinking to explain the shape of hyperspace, even if there are many disagreements and arguments between the three of them because of the concept, but that is also a normal phenomenon in academic exchanges. If nothing else, let's just say that when he was discussing problems in the superstring theory group, such arguments and even quarrels were already commonplace.

There was controversy, and of course the harvest was indispensable. At least it was originally written by Jun Xin, and later due to time problems, it was handed over to Professor Horowitz and Witten for the extra dimension problem of superstring theory, and the final draft has been decided on this discussion. Although Professor Witten still needs the nod of the program according to the procedure, but this is only a procedural problem, Professor Witten is not so stubborn and inflexible, they don't care about these problems at all, they only care about whether the problems have been effectively solved.

As a result of the discussions, the name of Professor Yau was added to the list of first authors. The names of the final first authors became Witten, Junxin, Horowitz and Yau. Originally, Junxin asked for him to be ranked last, but Horowitz and Professor Yau insisted on being ranked behind him, and in the end he was ranked behind Professor Witten. However, Junxin was very suspicious, if Professor Witten was also here, maybe he would end up in first place. Privately, I heard Horowitz say that Professor Witten meant to include him as a corresponding author in the paper.

Back at Princeton University, the campus is quiet and lively. Quietly, because the holidays are over, most of the students have actually gone home. During the Christmas season, the popularity of the campus suddenly became very weak, and even the night snack shop that Junxin wanted to go to frequented had closed. It is said that it is very lively because Princeton University was originally a church school after all, so the traditional Christmas is a big celebration of the school, and all parts of the school have been carefully decorated by the staff, which looks very beautiful. A change from the quiet atmosphere of the past.

Junxin didn't care much about how Princeton celebrated Christmas, what kind of activities to organize to celebrate Christmas, such activities had been seen too much in his previous life, although because of the change in aesthetic reasons, Princeton University Christmas fifty years ago was still quite distinctive compared to fifty years later, but to be honest, the so-called celebration seems to be the same thing.

So, after glancing with interest at the decoration along the way from the school gate to the Butler apartment, he quickly lost interest in continuing to look at it, and went all the way to his dormitory without saying a word.

In fact, Professor Yau Chengtong also mentioned that he wanted to stay with Junxin to spend Christmas together, but Junxin still refused without hesitation. It's not that he's in a hurry to go back to Princeton for Christmas, or that he wants to go back after a long time away, it's because he really doesn't feel like Christmas.

Christmas is a traditional holiday in the Western world, and its status is equivalent to the Chinese New Year, so its importance is naturally needless to say. However, no matter how good Christmas is, it is just a Christmas for Westerners, and after it was transmitted to China, Christmas was just an aspect Chinese of the traditional culture that Chinese people began to get in touch with in the Western world, and it was not great at first.

However, the final result is that some Chinese people have begun to regard Christmas as their fixed holiday, rising to the point of equal to or even exceeding the traditional festival, and treating Christmas as a sacred festival. In this regard, Junxin is very disdainful. In any case, Christmas is only an important festival in the traditional culture of the West, and there is no need to rise to the level of surpassing the cultural festivals of the nation.

The so-called Christmas is the birth anniversary of the traditional religion of Christianity in the West, so it is called Christmas. Because Christianity runs through the entire history of Western culture and even civilization, Christmas, as the most important holiday of Christianity, has also become a traditional festival and cultural symbol of Western culture.

But as a Chinese, the Chinese nation, which has a continuous culture and civilization, is not lacking in culture, so it needs to adopt Western culture as a supplement to its own inherent culture, is it really necessary to treat Christmas as the most important festival? What makes Junxin feel very funny is that even in later generations, Christmas has never been a national legal holiday, but it just makes some people flock to it.

In fact, more often than not, Christmas is just a shadow and does not mean anything. But with other festivals that are part of Western culture, such as Easter, Halloween, etc. Especially Halloween, it is even more disgusting to Junxin, Junxin in his previous life in the country often saw some people wearing so-called customs, wearing so-called masks, good people don't do it, but want to be a neurotic street and alley. Some people explain that it is personality, but in his opinion, it is actually just virtue!

To be honest, Junxin really doesn't like Christmas at all, and he can't talk about any resentment, he just doesn't like it, so under normal circumstances, he will lock himself in the house as an otaku at Christmas, and even three meals are ordered for takeout. However, it must be made clear that there will be a slight tip for food delivery on this day. That's why he didn't like the day.

Well, in fact, the most important reason is that when he applied for the graduate school of Jiao Tong University, the exam time happened to be on this day. So he had good reason not to like the day.