The train sped along the established tracks, heading from the south in the direction of the capital. Although it is the day of the school year, the people on this train are not as crowded as the legendary Spring Festival. 80 years, but just two years after the resumption of the college entrance examination, it is not like the expansion of the university later, and the number of students has skyrocketed. Only a few people stand out and become the pride of heaven in the eyes of the people, and enter the threshold of the university.

The people on the train were all together, and they shouted loudly in various dialects, regardless of whether others could understand or not. Maybe it's because everyone is of the same age, and because they went to school together at BJ, so basically the content of the conversation is related to some future college career planning and so on.

The people on the train were arguing fiercely, but Xu Dong found that the boy opposite him was not interested in participating in the conversation. He lowered his head and held a thick foreign language book and looked at it intently. Xu Dong had been observing this boy for more than an hour. But the boy basically ignored Xu Dong. Not even interested in looking up.

Finally, Xu Dong couldn't help but ask: "Hey, this brother, what are you looking at?" ”

The boy on the opposite side raised his head at this time and looked at Xu Dong with a little confusion, Xu Dong only saw the appearance of this boy at this time, the boy is not very handsome, ordinary look, but the whole person exudes a bookish atmosphere that makes people feel very comfortable. His face was very pale, and it seemed to be the sickly and slightly haggard white peculiar to people who have been sitting still for a long time or have been using their brains for a long time. Xu Dong moved his gaze to the book in the boy's hand, the book was very thick, and in Xu Dong's opinion, this book was somewhat similar to a tome like a dictionary.

The boy on the other side didn't answer, but looked at Xu Dong with a slightly confused gaze, but when he noticed that Xu Dong's eyes were looking at the book in his hand, the boy seemed to react: "Are you asking me about the information of this book?" ”

It's a strange answer, but maybe everyone has their own language habits, and Xu Dong doesn't mind anything about this, and repeats his question again: "What book are you reading?" ”

"It's Russell's Principia Mathematica." The boy raised his hand and showed the cover of the book to Xu Dong.

Xu Dong thought about it a little puzzled, not sure if he knew that such a book existed, but then the man's explanation made him understand the book: "Principia Mathematica is a book on philosophy, mathematics and mathematical logic written by the famous British mathematician, philosopher and literary scholar Bertrand Russell and his teacher Whitehead. ”

"Shouldn't Russell be a philosopher? When did you become a mathematician? ”

"Russell was a philosopher in his later years, but his early research was indeed a mathematician!" The boy didn't want to discuss this issue much at this time, so he just explained it briefly.

"Oh!" Xu Dong didn't actually want to know what kind of person Russell was, he was actually just interested in this boy who had been able to be so serious and focused in a noisy environment, so he asked, "My name is Xu Dong, I am from Shuimu, from Qilu, what is your name, and which school are you going to go to?" ”

The boy carefully saw that the pages of the book were folded and marked, and then gently closed the book, and replied: "My name is Junxin, a native of JS Huai'an, and I am also a person from Mizuki like you." ”

"Oh?" Xu Dong was really a little excited at this moment, but he didn't expect that the person who was talking casually on the train would be his alumnus. "I'm from the Department of Water and Wood Architecture, which department are you from?"

"Math department!"

"No wonder you just read a math book!"

Jun Xin smiled and didn't speak, strictly speaking, "Principles of Mathematics" has the name of mathematics, but it has gone beyond the scope of mathematics, it is no longer just a mathematical work, it is more accurate to count it as a philosophy book that transcends the limitations of the times.

"Brother, do you like math very much?" Xu Dong asked strangely again. In the eyes of the average person, mathematicians are a group of incomprehensible people, who have a strange habit that is difficult to approach, in addition to their extremely advanced knowledge. It's almost labeled as "don't enter the living".

But at the same time mathematicians have a lovely side to be called monotonous at the same time, they are usually extremely simple, and they are desperate to specialize in a problem, although this is the case for researchers of any natural science, but especially in mathematicians.

"Yes, no matter which natural science it is, it can be summed up in the final result as a mathematical formula for proof. Probably because of the unique position of mathematics in the natural sciences. Since I want to study science in the future, mathematics is the foundation! Jun Xin replied with a smile.

"Look at the tome you see, if you don't say it, others will think that you are a literary and artistic young man!" Xu Dong said with a smile, "I chose the Department of Architecture, and I originally wanted to fill in the Department of Biology at Peking University. ”

"Oh? Coincidentally, I originally wanted to study biographies, but then I was a little excited, and I accidentally filled in the wrong volunteer! Junxin didn't seem to be embarrassed, and said the reason for choosing the mathematics department.

Well, this answer is indeed very powerful, at least it scared Xu Dong, and he didn't know how to answer for a while.

The people around seemed to hear Junxin's answer, and they were speechless for a while, but after all, it was 80 years, and the reform and opening up had just begun, so the people now are still very simple, and they didn't make any sneering words to Junxin, but there was still an indescribable meaning in and out of the words.

"Brother, you still filled in the wrong thing for such a big thing as the college entrance examination? There's really not much more to say! It took a long time for Xu Dong to hold back such a sentence.

Junxin smiled and didn't answer, but recalled his experience.

Strictly speaking, there is nothing wrong with the statement that Junxin said that the volunteer report is wrong, but this Junxin is not the other Junxin. The original Junxin was just an ordinary genius student, and in the current statement, it is just that he was admitted to a super-first-class university in China. But this guy was overexcited after the exam because of his super long performance, but he made himself die suddenly, and then he was occupied by the current Jun Xinjiu.

Junxin comes from the twenty-first and thirty years in a parallel space, and there is a time gap of fifty years from the present, and he controls the future fifty years of scientific and technological development. And Junxin is also a super scholar, although he can't reach the IQ level of Terrance Tao (Tao Zhexuan), but he can be regarded as a super genius.

Junxin studied physics at Shanghai Jiaotong University in China as an undergraduate, and then was admitted to Princeton University as a graduate student, and studied string theory and other high-energy physics with Professor Edward Witten, a famous physicist and mathematician at Princeton University. Under the tutelage of professors in the Department of Mathematics at Princeton University, he made rapid progress and soon became a member of the Princeton Institute, earning a PhD in both the Department of Mathematics and the Department of Physics at Princeton University.

When he was about to return to his hometown for the New Year, the plane was attacked by terrorists, and finally the plane was destroyed and killed, and he was alone under the action of an unknown force, and finally came to this parallel space, and then fused the body of Junxin, who died suddenly, and became a new Junxin.

After receiving all the information from the former owner, according to his college entrance examination score estimate and some information, Junxin quickly made a judgment, and finally did not apply for the biology department of Peking University according to the original master's wishes, but applied for the mathematics department of Mizuki according to his own interests and plans for future life in later life.

So this is also the reason why Junxin said that he filled in the wrong volunteer.