Su Yuxi pushed the sunglasses on his head, bent down slightly and reached out to touch the little fat man's face, and then said: "Yunqi, there are always some more important things that give us the courage to defeat fear, fear is also an experience in our lives, most people think that courage is not afraid." Pen Fun Pavilion wWw. ｂiquge。 infoNow let me tell you that not being scared is not courage, it is some kind of brain damage. Courage is the ability to rise to the occasion despite the fear you feel, the ability to face it directly despite the pain you feel – we know there are no ghosts in this world, right?"

For this kind of thing, the two brothers and sisters are also good at it, Cheng Xiaoyu's mind is full of memories about chicken soup literature, and Su Yuxi has these words at his fingertips with a strong knowledge reserve.

At this moment, the little fat man looked at Su Yuxi's face, his eyes widened, tears fell, and he asked in a trembling whisper, "Are you the goddess of Su?"

Su Yuxi couldn't help but smile when she looked at the round face of the little fat man, nodded lightly and said, "Yunqi, if you want to be a brave child, you must study hard...... Scientific knowledge is our weapon against fear. ”

After saying that, she straightened up, ignored the people who were looking at her with incredible eyes, and pulled Xiao Zhiyan towards the door.

Who in the world doesn't know you?

The strong shock made the whole office silent.

The only perfect score champion in the history of the college entrance examination, the object of worship of countless students!

The little fat man, who had been a little timid, wiped his tears, jumped down from the chair, caught up with Su Yuxi and shouted: "Goddess Su, can you sign for me? With your signature, I must not be afraid at night.....

Seeing Su Yuxi stop, he hurriedly unloaded the schoolbag from his back, then took out the pencil case from it, and opened the pencil case in a little panic, and all kinds of stationery were scattered all over the ground.

Su Yuxi stood at the door of the office, squatted down to help the little fat man finish picking up things, then took the oil-based pen, and asked with a soft gaze, "Where is the sign?"

The sweaty little fat man, who was already nervous, hurriedly handed over the schoolbag and stammered, "Just... Sign...... Book..... Pack..... Above. ”

Su Yuxi took the schoolbag and wrote seriously with a black oil-based pen in the upper right corner of the schoolbag: "If you encounter an unknown that you don't understand, what you have to do is not to be afraid, but to learn." ”

After finishing writing, he handed the schoolbag to the little fat man, patted his head again and said, "Come on!"

The little fat man nodded vigorously.

Xiao Zhiyan, who was standing on the side, pursed her lips, she had never seen Su Yuxi smile, and she actually smiled at this little fat man once today, which was the most unpleasant thing she felt.

Sister Xi never smiled at her, even if she scored 100 points in the exam, even if she could answer the questions raised by Sister Xi, she didn't get such a reward, which made Xiao Zhiyan a little jealous of this little fat man.

Su Yuxi didn't care about the group of gossipy teachers who had crowded to the door and the greasy aunt who said "thank you" with a smile to her, and pulled Xiao Zhiyan and left directly.

Xiao Zhiyan asked angrily with some incomprehension: "Sister Xi, why are you so good to Zhang Yunqi's little fat man?" There was a strong vinegar in the sentence.

Su Yuxi took Xiao Zhiyan's hand and walked through the somewhat quiet campus, and said, "Not for anything else, just because he is a little fat man with low self-esteem." ”

Xiao Zhiyan stopped talking, she remembered that Brother Xiaoyu used to be a little fat, and he would pant when running, so she changed the topic, turned her head to look at Su Yuxi and said happily: "Sister Xi, you were so powerful just now.....! When will I know as much as you do?"

Su Yuxi didn't pay attention to Xiao Zhiyan's sycophants, but asked, "Didn't you not only organize your classmates to watch movies, but you also made money?"

Xiao Zhiyan lowered her head and stuck out her tongue, and then defended: "Isn't this something that I can count in one fell swoop? I supported my brother's movie, made money myself, and experienced a simple commercial mechanism.....

Su Yuxi shook his head and said: "The idea is good, but the practice is the worst one, no matter what time you are, you must remember one thing, don't do things that are beyond your ability....."

Xiao Zhiyan pouted and said, "I want to save my own money, buy a plane ticket to Los Angeles, and go to see Brother Xiaoyu in the summer vacation....."

Hearing Cheng Xiaoyu's name, Su Yuxi looked at the somewhat hazy sky in the capital, and thought that he was trying to break his "fate"?

She was a little skeptical about whether she could really win, but she didn't know what regret was, and she had no choice but to break her and Cheng Xiaoyu's "fate".

After getting into the little mini, Xiao Zhiyan fastened her seat belt and asked, "Sister Xi, what did you just say about the 'parallel universe'?"

Su Yuxi said while starting the car: "There are nine concepts of 'parallel universes', but most of the popular multi-world hypotheses are derived from quantum mechanics.......

Although she didn't understand, Xiao Zhiyan listened quietly, she liked the way Sister Xi taught her knowledge, it was really beautiful in her opinion.

As time passed on the road, Su Yuxi had already talked about the most widely circulated concept of parallel universes: "...... The most philosophical is the so-called ultimate multiverse, which assumes that all possible laws and parameters exist and can form their own universe, even those that cannot be mathematically calculated and expressed, which is undoubtedly the infinity of infinity. Such a universe shakes the philosophical foundation of epistemology, and scientific exploration is based on the motivation of trying to explain why the laws of the universe and the parameters of the universe are the way they are, but in the ultimate multiverse, all possibilities exist, and according to the uncertainty of quantum mechanics, everything is probabilistic, for example, if you shake the dice and shake it more times, the same probability will appear from the number of points from 1 to 6, and in the same way, according to the observation of the world's smallest unit quantum, the probability of our macrocosm can be deduced at different times and in different positions in the quantum world, such as we now, choose to go home to eat or eat outIf the probability of a person's lifetime is counted, there may be tens of billions of trajectories, if there are enough universes and the historical process is far enough away, there will be countless possibilities for the same person, and in the same way, we can deduce tens of billions of universes, the same root, different trajectories. ”

After a pause, Su Yuxi said again: "It's like the most famous 'Schrödinger's cat' is the simplest parallel universe model. The moment you put the cat in the box, you build a bridge between two universes, one universe, where the atom decays and the cat dies, and the other universe, where the atom does not decay and the cat does not die. It's like a three-way street, the moment you open the box, you enter one of these 2 parallel universes, but you can't choose which one to enter in this model. For example, in string theory, there are as many as 10 to 500 power forms of high-dimensional space, which may result in the same number of multiverses, and the sum of all the elementary particles in our universe is only 10 to the 90th power......"

Su Yuxi didn't care if Xiao Zhiyan understood it or not, and simply explained the concept of 'parallel universe' for her, and even told her about the virtual universe that would be generated in the future.

Although I don't understand the theories behind many things, under Su Yuxi's teaching, Xiao Zhiyan still can't read a lot of books, plus Su Yuxi's explanation is quite easy to understand, and she can barely understand some simple things, but everyone is most concerned about one point, Xiao Zhiyan is the same, she asked: "So can the parallel universe be traversed? Is it possible to return to the future beyond the speed of light?"

Su Yuxi said: "According to the theory of relativity, there is no way to exceed the speed of light, so there is no such solution. The only explanation is that if the speed of light is essentially exceeded through the so-called wormhole, something will happen that can go back in time. But there are also a lot of problems in this, that is, whether your memory will travel back with a piece, if you don't travel back together and you just return to the original state, then there is actually no meaning in crossing and traveling, whether you go back in time or not, you can't feel it at all. When you enter from one universe to another, it also adds extra energy to that universe, then the biggest possibility is that it collapses, logically speaking, the reason why parallel universes do not enter each other is that they must have different energy states to play a layering role, maybe similar to quantum transitions, an atom jumps from a high-energy state to a low-energy state by releasing photons, etc., can people be similar to this' 'Jumping' is a big problem, unless the body is dead, and there is really such a thing as a soul, then you can jump to a parallel universe..... However, this kind of problem is unsolvable at the moment, because in the foreseeable future, as long as humans are three-dimensional creatures, it will never be possible to understand extradimensional things..... At present, we can't imagine four-dimensional, only mathematics and physics can describe four-dimensional images. ”

At this time, Xiao Zhiyan opened her eyes wide again and asked, "What is the relationship between physics and philosophy?" Xiao Zhiyan saw most of the books in Su Yuxi's study about physics and philosophy, so she was very curious about the relationship between the two.

"All science is originally a branch of philosophy, and there are many philosophies, positivist philosophy, nihilism, and so on. Why are all Ph.D.'s Ph.D.'s, that is, Doctor.of.Philosophy, and all of them "Ph.D.Phil.Doctor"? But like J.D., Juris.Doctor?, and M.D.Medical.Doctor?, this shows that physics, chemistry, philosophy itself, and even literature, economics, and history are all philosophical categories in the Western division. Basically all disciplines are one aspect of philosophy, and ultimately we study them in pursuit of truth, but each discipline represents a different approach. ”

Although Xiao Zhiyan didn't know why, she did understand, and then she asked like a curious baby: "What does art and science have to do with it?" In her opinion, there was no question that Su Yuxi couldn't answer.

Su Yuxi thought for a moment and said: "Regarding the relationship between art and science, the goal of these two fields is the same, both are to pursue the truth. It's like everyone is climbing a mountain, all of us who learn knowledge are going to climb the same mountain, and this mountain has only one peak, but everyone's path may be different, so art and science are climbing the mountain of truth, but everyone's path is different, but the closer you get to the top of the mountain, the closer you are. That's why great scientists are not low in art, and great artists are full of curiosity about science....... Not to mention science and art, even philosophy and theology, I believe that they are all ways for human beings to pursue truth. ”

"Everyone who climbs this mountain is expecting to reach the top and see the truth as it really is. Each discipline is a way, there are many ways to go from the foot of the mountain to the top of the mountain, science is the method of empirical and push, theology is metaphysical and mysterious, and art is emotional, everyone has different methods, and the by-products produced are different, for example, the by-product of theology is religion, the by-product of science is the progress of technology, and the by-product of art is the work of art. (For the relationship between art and truth, see Heidegger's The Nature of Truth, which will not be repeated here.) ）

Xiao Zhiyan blinked her eyes and looked at Su Yuxi's side face and asked, "Sister Xi, is Brother Xiaoyu a great artist in your eyes?"

Su Yuxi smiled and said, "Great artists are definitely not ..... But he's certainly a great older brother....."

This is the second time Xiao Zhiyan has seen Sister Xi smile today, she thinks that Su Yuxi must have something happy, which makes her mood happy, she sat in the previous work, supported the chair with both hands, crossed her slender legs and said: "Brother Xiaoyu, the song is so well written, and the story is so good-looking..... I think he's a great artist. Xiao Zhiyan has long known that to make Su Yuxi happy, patting her ass is not as effective as patting Cheng Xiaoyu's fart......

Su Yuxi looked at the road stretching in different directions and said calmly: "For me, the greatest and most beautiful music and stories in human history are not sung by artists and troubadours, nor written by playwrights and novelists. Such music and stories are told by science........ The music and stories that science tells are far beyond the artist's imagination in terms of grandeur, twists and turns, horror and mystery, horror and mystery, and even romance and sentimentality. ”

(Not to explain real estate in terms of physics...... It's the way of thinking in physics...... For books about parallel universes, I recommend a copy of "Hidden Reality: What is a Parallel Universe" After quantum mechanics, physics has shown a new philosophical outlook, while science and technology are rapidly changing human life, the latest world view of science is not known to ordinary people, the gap between nature and the universe in the eyes of us and scientists is getting bigger and bigger, modern physics and cosmology show scientists an extremely broad universe, and the universe in our eyes is still an imaginary endless starry sky, or the nineteenth century, The twentieth century painted a classical picture, but these are far from what scientists perceive. ）