During the recess, the class was noisy, and the boys and girls in the flowering season were noisy, laughing, and playing.

It has nothing to do with the excitement at this time, Xue Ba is holding his chin with one hand, looking out of the window blankly, with a lot of thoughts in his heart.

What a miraculous thing, can a person really become an immortal and fly in the sky? Where does that motivation come from? Or does Newton's laws of motion fail in immortals, and that spiritual power obviously does not belong to the four basic forces, and can the framework of classical mechanics be applied to it?

Suddenly, Xue Ba smelled a faint smell of perfume, and only felt that his head was lightly tapped by a soft finger.

He looked up blankly, only to see a graceful figure standing in front of his desk, it was Banhua Xie Lina.

"Xueba, play a game with others!" Xie Lina looked a little embarrassed, and there was a hint of expectation in her eyes.

"Oh, what game?" Xue Ba asked curiously.

"I have 2 coins here, you and I have one, I shout 1, 2, 3 and we will show the side of the coin together! If it is both heads, I will give you 3 yuan, if it is both tails, I will give you 1 yuan, if it is a positive and a negative side, you can give me 2 yuan!" Xie Lina explained the rules of the game as she took out two coins from her pocket.

"Don't play! this game is not fair!" Xue Ba righteously refused.

"What's unfair? It's the same in terms of probability!" Before Xie Lina could say anything, she heard Chen Chen, the representative of the math class who was watching from the sidelines, retort.

"There are four situations for these two coins, positive, anyway, positive and negative, reverse and negative, the probability of occurrence is 1/4, if I come to play, my income will be 3*1/4+1*1/4=1, and Nana's income is 2*1/4+2*1/4=1, the income of both of us is the same, very fair!" Chen Chen's words made the students next to him nod, not a loss is the representative of the math class.

"This is a bright coin instead of a coin toss, that is, the other party can control the probability of various situations, you should use the Nash equilibrium of game theory instead of classical probability theory to discuss! Suppose the probability of your head is P, then the probability of you going back is 1-P......" Xue Ba took out a pen and paper, ready to calculate the expected return of both sides under the optimal strategy for them.

"Nana, don't pay attention to him, I'll play with you!" Before he could finish speaking, Chen Chen had already pulled Lina aside with disdain.

"Who likes to play! I don't play! I'm not a fool!" Xue Ba looked at the backs of the two laughing, so he could only put away the pen and paper, and said stupidly.

The tablemate promised to take his eyes off the romance novel on the desk, glanced at Xue Ba, and sighed: "The big beauty took the initiative to talk to you and play a game, you still have to consider whether this game is fair or not! You still say that you are not a fool?"

Xue Ba said seriously: "IQ is 2 standard deviations lower than the average of the crowd to be called a fool, I have 160 okay! In addition, although it is none of my business, reading these novels will only affect your academic performance, there is no benefit, you know, novels are all lies! Poor students love to read novels!"

"You know the!" promised to return unceremoniously.

"Don't give up on yourself just because I robbed you of the first place! The second place is also very good! Although I haven't taken the test, just like the second highest peak in the world, Qiaogoli Peak, isn't there many people who know it!" Xue Ba said earnestly.

"You're lucky, let's see if you're so lucky in the final exam!" promised back, suddenly frowning, with a very painful look on his face, and the whole person curled up on the table.

"What's wrong with you?" Xue Ba asked with concern.

"Headache!" Promise whispered.

Xue Ba then remembered that in the past few days, Xu Yu has often been in a trance, and he always says that he has a headache.

Xue Ba looked at his tablemate, although she was already a fifteen or sixteen-year-old girl, her thin body, her yellow hair and the slightly old school uniform on her body all revealed the embarrassment of the situation.

I heard that her family had a sudden change last year, her mother died, and her father was also devastated and became ill, and the whole family fell on her, and now she promises to earn a little living expenses by helping in the school cafeteria every day.

Although Xue Ba felt that Xu Xu's learning attitude at the same table was extremely improper, he often read novels that were irrelevant to his homework, did not write homework, and even often slept in class, if it weren't for her good grades, she would have been called a parent by the teacher, but after hearing her story, Xue Ba still sympathized with this stubborn and strong girl.

"Do you want to take you to the infirmary?" Xue Ba was also a little overwhelmed when he saw this scene.

"No, it'll be fine in a while!" Promise gritted his teeth and shook his head.

Five minutes passed, and the promise seemed to be getting worse and worse, and she kept moaning like a mosquito, her face turned pale, and a cold sweat the size of a bean continued to break out from her forehead.

Xue Ba looked at her painful appearance, and felt compassion in his heart, but he didn't know how to help her alleviate the pain, and couldn't help but reach out and hold the shoulder of the promise.

Something strange happened, and Xue Ba watched as a cold green qi escaped along his palm into the promised shoulder.

The moaning of promise stopped abruptly, and she only felt a steady stream of warm cold currents coming from her shoulders, swimming along her body, and everywhere she went, it was pleasant and cool, and the unbearable pain that penetrated deep into her brain disappeared without a trace in an instant.

"How did you do that?" she looked up at Xue Ba in surprise.

Xue Ba found that this originally inconspicuous tablemate had undergone earth-shaking changes in just a few breaths, with a little more girlish blush on his originally slightly vegetable-colored face, and a little more streamer in his originally dim eyes.

"I don't know how this was done, is it?" Xue Ba was also surprised, he looked at his palm, and suddenly had a general idea in his heart.

Facing the promising inquiring gaze, Xue Ba closed his eyes and looked inwardly at the changes in his body.

Sure enough, the spiritual power value has changed from 5.01 to 0, obviously, just now with the movement of his mind, the spiritual power in the body cured the pain of the promised body, it seems that the use of this spiritual power is still quite extensive, but I don't know what else it can be used in.

"What is it? Do you know qigong?" interrupted Xue Ba's musings.

"It's not qigong! It should be said that it's immortal art!" Xue Ba replied honestly.

"Amazing, have you met the white-bearded old man, saying that your bones are amazing! I have passed you a set of meditation and vomiting methods?

"There is no white-bearded old man, but there is meditation! You guessed accurately!" Xue Ba was a little surprised.

"If you don't want to say it, don't say it, why are you deceiving people, and it's a fairy! When I'm a three-year-old child!" Xu Xu scoffed, not taking his words seriously.

"Don't believe it!" Xue Ba shook his head, didn't bother to explain more to her, took out his favorite "Frontier" from his schoolbag, and read it with relish.

The class bell rang, and as the head teacher walked in from outside the classroom, the classroom, which had just been noisy like a vegetable market, suddenly fell silent.

Xue Ba opened the textbook and was about to start the class, when a small paper ball rolled next to him.

Xue Ba opened it and saw that there was a crooked villain painted on it, with an exaggerated mushroom hairstyle, and it was himself at first glance.

The villain was holding a whisk in his hand, looking at the wooden fish in front of him, drooling blankly, how stupid he was.

There is also a line of words written on it: "Thank you for your immortal arts! I wish you to break through the red dust and ascend to bliss early!"

Xue Ba turned his head to look at the girl sitting beside him without squinting, and couldn't help but smile.

The sun shone down and shone through the window, casting a golden glow on all the young faces.

After enduring the thought of entering the cultivation space again countless times, Xue Ba looked at his watch uneasily while listening to the class, and felt that the class was so difficult for the first time.

Finally waited until the end of class, Xue Ba didn't bother to say goodbye to the teacher, so he picked up his schoolbag and hurriedly ran towards the school gate.