For Qin Yi, the three years of intense high school have passed, and the new college life has just begun, with various course electives, various activity shows, enrollment of various interest classes, and so on. Qin Yi was completely infected by the warm and unrestrained atmosphere here, and his heart was extremely relaxed and comfortable.

"Brother Yi, Professor Zhao's "New Concept of the Universe" course is good, let's go to the class today to listen!" Xinyu was familiar with the information, and when he saw Qin Yi who came back from morning exercise, he hurriedly told him.

"Okay." Qin Yi studied a history-related major, but he was also very interested in this kind of course, so it was good to listen to it, so he asked casually, "What about Ling Zi?" ”

"He's very popular now, and a classmate invited him just now. Oh, he said to help us get a seat first. ”

Professor Zhao Jiangtao has become very popular in recent years, and his lecture "New Concepts of the Universe" is one of the most popular courses in the school as a public elective course in science and engineering, and the students are often full.

"How did the universe originate, and how did it evolve, develop, and perish? Since ancient times, it has been a question that has been of great interest to mankind and has been constantly exploring. The topic of the universe has been subject to various myths and stories throughout history, but as a science it should be based on rigorous theory and experimentation. ”

Professor Zhao's class had already begun, and the two of them walked towards the front door of the classroom with their heads drooped.

"Report!" "Report!"

Professor Zhao Jiangtao is nearly forty years old, probably often doing the work of exporting wisdom, and he has some thanksgiving on his hair, but his spirit is undiminished and his temperament is compelling. He looked up at the two new students: one was handsome with glasses, but his eyes kept flickering; One has a slightly darker skin, but his eyes are fixed. Not to mention that few students are late for his class, and even if they are a few minutes late, he rarely punishes students for standing, but now he wants to do this, so he continues to lecture:

"Cosmology is a question of inquiry, both scientifically and philosophically, and there is no ready-made exact answer, so a scientific attitude is particularly important for understanding the universe. From Plato's and Aristotle's geocentric theory to Copernicus's heliocentric theory, from Newton's theory of universal gravitation to Einstein's general theory of relativity, this is how human beings have come to understand the laws of nature step by step. ”

"Human beings began to understand the universe by knowing the sun, the moon, and the planets in the solar system. For a long time, the universe was thought to be the sum total of matter that is boundless in space and has no head and tail in time. With the development of science and technology, humans have observed the edge of the universe, which is a quasar about 10 billion light-years away from Earth. Some astronomical observations and theoretical studies have led people to believe that the universe came into being at the moment of explosion, so the concept of the universe has changed radically. Not only that, but people can also learn about the physical state of stars that are very far away from Earth. People's footprints began to involve other planets. The study of heaven requires the latest knowledge of nature and the most advanced technology, and heaven will always be the most cutting-edge science for human beings to understand nature. But heaven is the oldest science, it is almost with human beings at the same time, modern celestial bodies and all the new concepts of the universe have undergone a long period of development, so modern heaven is based on the continuous pursuit and exploration of human beings. ”

Halfway through the course, Professor Zhao looked at the two again, and the former was timid and red-faced, as if he had already known his mistake and was ashamed; And the latter actually looked at him, his eyebrows were slightly wrinkled, and under the majesty, he was not only not afraid, but also went forward, and was bold. In fact, Professor Zhao watched them for less than a second, and his years of teaching experience told him that the former was agile and active, and the latter was diligent and studious. The two can invite together, they are undoubtedly good friends, if they are really like-minded friends, they can be diligent and diligent over time, and diligence can make up for each other.

"Teacher, I have a question?" Qin Yi saw the teacher stop, so he raised his hand and said.

"Huh?" Professor Zhao was a little surprised, there are fewer and fewer students who want to ask questions in class now, and this student is the first student standing at the door and asking for questions in more than ten years.

"Of course, you say."

Qin Yi sorted out his clue and raised his head and asked:

"Thank you, teacher! The teacher just said that the heavens are now based on the continuous pursuit and exploration of human beings, so I want to know what is the purpose of human beings' continuous pursuit and exploration, is it the thirst for resources? Is this due to man's own excesses? Is it because of the depletion of the earth's resources and the desire to take advantage of other planets? ”

"Done?" Professor Zhao really didn't expect this student to have so many questions, so direct, and so in-depth.

He was thinking about how to answer, when he saw a classmate in the audience raise his hand and stand up, it was Jin Ling.

"Teacher, what my classmate means is: our existence itself is not a harm to the universe."

This kid is worried that he won't be able to answer too many questions, good boy, the language is really sharp, Professor Zhao just wanted to answer the question, and the classmate with glasses at the door raised his hand again.

"Teacher, I have a question too."

Professor Zhao laughed: "Today's bench students are doing well. Wait, allow me to write the question on the board first. ”

"Okay, this classmate, you say."

"Thank you, Mr. Zhao, I admit that Mr. Zhao's class is the best in our school, but there is one thing I don't understand, is the cosmology we studied meaningful?"

Professor Zhao was very surprised when he heard this, and was about to give him a lecture, when he heard again:

"Teacher, don't be angry, please let me finish the question, we know that the universe is extremely vast. As the teacher said, we know that the edge of the universe is about 10 billion light-years away, and in order to solve the mystery of the universe, we can divide this distance by the speed we imagined, so the time we need to wait is, sorry, students, the calculator is not so many zeros (some students laughed). ”

"Teacher, what I mean is that time is only the length of life for each of us, and the time of life is only more than 100 years at most, when life stops, is there any meaning in these studies?" (A small number of students are in an uproar)

What words did Professor Zhao's expression use to describe it at this time? Angry, not that hard. Depressed, of course not. Joy, I can't talk about it. Excited, well, of course. The questions of these two students are doubtful, in-depth, and very meaningful.

He took a long breath, smiled and said to them, "Two students, please sit down in your seat, and please allow me to answer these two questions together." (Applause.)

"Students, before answering the question, I would like to mention two characters. The first was Charles Darwin of England, who said, 'Natural selection, survival of the fittest'. Yes, nature has chosen us, and at the same time, we should also abide by the laws of nature, if we ignore it, the consequence is that nature will choose to abandon us; The other is Mao Bowen, who is a famous scientist in China, who once proposed a 'symmetry theory of curved space'. Oh, it's simply the space-time tunnel theory. Although it has remained at the stage of conjecture, the scientific community has not lost confidence. Let's put it this way, two thousand years ago, light and electricity were only known as natural phenomena; It was only two hundred years ago that we began to have a preliminary understanding; Nowadays, we are able to skillfully convert light, electricity, heat and other energy in various fields. To the ancients, these techniques were nothing less than myths. To paraphrase an advertising slogan: 'We can go as far as we think'! What the future will look like, who knows? (Applause)

Professor Zhao took a sip of water and said affectionately: "Now I want to answer your two questions in one sentence: excessive asking is undoubtedly a harm, and meaningful existence is wonderful!" (thunderous applause)

At the end of class, Professor Zhao deliberately left Qin Yi and the two of them.

"I'm sorry, two classmates. I just let you stand for so long! ”

"Teacher Zhao, your class is so good, even if we can stand in class, it will be worth it!" Xinyu's words are indeed from the heart.

"Yes, Mr. Zhao, can you tell me your phone number?" Qin Yi asked.

"Of course, yes, you can always come to me if you have any questions in the future." Professor Zhao said enthusiastically.

Qin Yi was very grateful, when Mr. Zhao mentioned his grandfather's name just now, he had already been excited, if it wasn't for the day before yesterday when his grandfather told him, he might have been unable to help but say that Mao Bowen was his grandfather. Leave the phone now, maybe it will be useful later.