(Foreword)

When you meet an opponent in chess, you will meet a good talent.

(Text)

The gringo propped his hands on the table and looked directly at Professor Wu on the podium.

Professor Wu slowly opened the laptop he had just closed. A PPT of the answer popped up on the electronic screen.

"Did I say something wrong or something? Why do you compare me to the horse in the street pavilion back then, who only knows how to talk on paper? Professor Wu said with a smile, not seeming to be angry in the slightest.

"Professor Wu, thank you for explaining so much theoretical knowledge about quantum mechanics before, but I would like to ask you a fundamental question, quantum mechanics is only one of the many branches of physics. What do you think is its real purpose? And what can it bring to this society? Do you really think it can lead to the change of the times? Or, as I said earlier, just words on paper are simply useless? ”

"I don't think so, quantum mechanics is not just an abstract concept, there are some principles of quantum mechanics in our lives. Solid state physics, for example, uses the fundamental principles of quantum mechanics. And there's more we need to know. Science is also a process of our constant search for truth. Therefore, I believe that the study of quantum mechanics will one day make the world realize its value. ”

The gringo clapped his hands: "Professor Wu said very well, but it will take people many years of research just to believe it." In the end, there may be nothing. Why don't we devote our time to more useful areas? What about making a more tangible contribution to society? ”

There was silence in the classroom. The students who were tidying up the desks also put down the books in their hands. The students who were about to leave the classroom slowly returned to their seats.

I thought to myself, why not? We learn a lot every day. But no one knows what it is for. The teacher always told us that it would be useful in the future. But what would it be like if you spent decades and found out that what you were studying was just a dream? I looked at my classmates who were seated. Maybe that's what everyone thinks now.

"You're right, maybe it's possible, our research is just some principles, and it can't be used in life at all. But what if we succeed? What if our achievements could lead to the development of human history? Even if the process is long and boring, what if it succeeds? So I never think I'm just talking on paper, and I'm never giving up on my research. ”

It's hard for me to imagine that Professor Wu would be so excited. He held the microphone tightly in his hand.

It's true that a lot of times we don't know the outcome. It can succeed or it may fail.

My mind pulled me far away, and I thought back to the island where I had failed countless times. But now I can still sit here and listen to Professor Wu's lectures, not because we have not given up and will never give up.

Yes, we will never give up.

"I'm sure everyone here will say it. But what we need is something substantial! And not the principle of utopia. I admire you for many years of research in this field. But nothing has been achieved. IMHO, do you really think there's value in researching? If you study something else, you may be ten times or a hundredfold of what you are now. ”

Professor Wu was about to say something, but I suddenly stood up and retorted to the gringos in the loudest voice I could make: "There are too many impossibilities in this world, and some people always look at all problems with their own established ideas. But they forget that they don't know the world either. Ignorance makes them give up their dreams and become short-sighted, which will make human civilization stay in place, lose the motivation to move forward, and stagnate in progress.

Whether it's a train or an airplane, these remarkable inventions all started with the study of theories that people thought were untrue. In the eyes of the people at the time, it was stupid and ridiculous. But if we have not dreamed and worked hard, how can we talk about new creations and lead a new civilization for mankind?

Whether it's quantum mechanics, Hugh Everett III's many-worlds interpretation, or Schrödinger's superposition of cat's life and death, there are still too many unknown infinite possibilities, but now you are trying to deny this possibility, blocking another path that leads to the change of the times.

I guess you should know Schrödinger's cat, right? The cat has two states before the box is opened, and after the box is opened, the cat inside will only have one state.

When you make one choice, another one disappears, and as in the case of the quantum theory we are discussing here, the moment it is dismissed by you as a piece of paper, perhaps the possibility of it shining in the future is also stifled by you.

So please don't deny it lightly, when you deny its possibility, you will no longer see its infinite possibilities, and you will not be able to witness the day when it will lead the change of the times, and truly become a loser of the times. ”

The moment I finished speaking, the audience suddenly burst into roaring applause, and all eyes around me were focused on me.

That's when I realized that I had said so much in righteous words. And it's so loud, this saves me from waking up Yan Xiaoxue. She was looking up at me in shock. I immediately took my seat.

Yan Xiaoxue patted me; "What's wrong with you? Have you forgotten that we are not students here? ”

That's when I reacted. I'm not a student here yet, and if I find out, I'll be in trouble.

The gringo clapped his hands vigorously, and the compliments of the audience interrupted my thoughts, and he turned his head to look at me and said, "This classmate, after listening to what you just said, I don't think I should deny its infinite possibilities. Otherwise, I would really be a loser and would not be able to witness the changes of the times. Oh, by the way, I want to ask, what's your name? Which major? ”

Professor Wu also looked very excited. "To be honest, in so many lectures, I rarely get to see a student like you. This student, which college are you in and how many classes are you? ”

Damn, no, I'm not a student here. You can't let them know.

Thinking of this, I immediately stepped on Yan Xiaoxue fiercely, and said softly, "Why didn't you stop me when you woke up." Now it's okay, what should I do? ”

Yan Xiaoxue said unhurriedly: "How do I know that you will say so much, don't care, let's slip away first!"

I nodded, "Okay, let's slip away."

"This classmate can't have forgotten his name, right?" The gringos still kept asking for my name.

Yan Xiaoxue looked at the countless pairs of eyes looking at me around her: "Just say that you forgot, and tell them next time you think about it."

That's what I can do," my name is ......, by the way, hero... Ignore... Provenance, the mountain does not turn... Water turns, we ...... next time"

Before I could finish my sentence, the classroom burst into laughter. Yan Xiaoxue grabbed me, "Okay, don't say it, you can do it, let's go." I bowed in the direction of Professor Wu, "I'm sorry, Professor Wu, I still have something." Then he and Yan Xiaoxue walked quickly towards the door.

"This student, I still have some questions, don't be in a hurry..."Professor Wu looked at the door of the lecture.

Standing at the door, I glanced in the direction of Professor Wu and saw him looking at me with a microphone in one hand.

I bowed awkwardly again, pulled Yan Xiaoxue, and walked out of the door.