It took Xu Zhe a lot of words to explain to the head teacher that he was not addicted to games, and he didn't even have much contact with games. What made me feel was just an idea about virtual currency.

As for where the idea came from...... Xu Zhe did not move Satoshi Nakamoto and the real Bitcoin out, after all, it is useless to move out, and he will expose himself to surf the Internet secretly. So the statement he gave was what he came up with when he was reading a math book.

"So, what kind of math book is it?"

It was the math teacher who asked this question and joined the discussion. This is a male teacher in his early thirties, with a good body shape, but the slightly sparse top of his head deducted some points for his appearance. His surname is Zhao, so his classmates call him Mr. Zhao.

Xu Zhe: "A book on cryptography. It talks about an algorithm called the hash algorithm. It is a secure hash function. You put a value into it, and it's easy to get it to output a result. But you can't extrapolate back the input value from the output result. So it's very useful in cryptography, and I think, it can also be used for cryptocurrency data. ”

Teacher Zhao pondered for a moment, and then said, "I think you are a very thoughtful child. However, the mathematics involved in these things is too profound, let alone to you, I studied mathematics in college, and I think it is profound. It's better for you to learn the textbooks thoroughly. ”

Teacher Sun echoed, "That's what I've always wanted to tell him. Xu Zhe, you are very smart, but no matter how smart you are, you must lay a good foundation first. ”

Teacher Zhao said, "And ah, if you think the things in the textbook are too simple, then why don't you try the Olympiad math competition?" There is a national math Olympiad in high school, but there is a junior and intermediate competition in the province. If you can get the Olympiad ranking in the province, it will be very easy to get into the top high school in the province. ”

Xu Zhe: "Olympiad ......"

In his plan after his rebirth, he didn't think about the Olympiad at all. After all, he knew very well that he was not a genius at all, but just had the precocious advantage of rebirth. The Olympiad is more and more difficult in the future, and it is most useful to get grades in high school, but the difficulty of the high school Olympiad is really not to be underestimated. In contrast, entrepreneurship and investment can really take advantage of the advantages of the born.

Teacher Zhao saw that he hesitated how to refuse, and added leisurely: "If you can represent our school to participate in the Olympiad competition, then you can be exempted from your usual homework." ”

Xu Zhe: "Really? ”

Mr. Zhao: "Of course it's true. To participate in the junior high school math competition, you must first learn all the knowledge in the junior high school math class, and you must learn it thoroughly. If you learn thoroughly, then the homework that is usually assigned to ordinary children will of course be useless to you. What do you think? ”

Xu Zhe was still hesitating, but he was not thinking about how to refuse, but whether to agree.

He felt that if he really wanted to sign up for a competition, the Information Olympiad would be more suitable, after all, he was a programmer in his previous life. As for mathematics...... At the beginning, it was the level of undergraduate high math that was okay. Now, if he takes the high math exam again, he feels that he may not be able to pass.

Not to mention high mathematics, it is the mathematics of the college entrance examination, he needs to study hard for a while before he dares to say that he is sure. As for the Olympiad, will that work?

But as long as you participate in this provincial competition, you have an excuse to shirk your daily homework, right?

So after thinking about it, Xu Zhe said, "I can try." ”

The head teacher, Mr. Sun, hurriedly said, "Don't say any competition yet." The final exam will be in a few days, and if you don't do well this time and have regressed, I won't allow you to participate in the competition. ”

Xu Zhe nodded: "Of course." ”

Teacher Sun added: "I have calculated the composition for you this time, if you do not do well in the final exam, you must be prepared to write the essay until you have cramps in your hands during the winter vacation." ”

Xu Zhe laughed: "You don't have to intimidate me, I will definitely take the exam seriously at the end of the semester." ”

————

When he returned to the classroom, Xu Zhe held his composition in his hand.

Song Xingye couldn't wait to come to his composition, and after looking at the score first, the corners of his mouth curled: "I'm two points higher than you." ”

Xu Zhe: "Well, because your writing is really good. ”

"But your score is not low, it stands to reason that it can be used as a model essay, but why doesn't the teacher read the ......," the girl said as she began to read. And the more she read, the more silent she became.

The class bell rings and recess ends.

At this time, Song Xingye was still reading silently.

The English teacher stepped up to the podium. Of course, she noticed Song Xingye who was reading the essay, but out of trust in the good student, she didn't give a warning, but started the class directly.

Song Xingye finally finished reading it and came back to his senses. She returned the composition to the boy at the table and secretly said, "You wrote a novel." ”

Xu Zhe: "Well, a dystopian short story. ”

Song Xingye: "What does dystopia mean?" ”

Xu Zhe: "Utopia is the ideal country, the most beautiful society in people's imagination. Dystopia, the opposite of it, is arguably the worst world. ”

Song Xingye thought thoughtfully: "Do you think the world will become like that in the future?" ”

Xu Zhe brought out the statement he saw in the forum in his previous life: "No, science fiction is not a prophecy, it is just a possibility of hypothesis. Literature needs drama, so imagine the most extreme cases. I don't usually think to the extremes of the good, because it's too unreal, and it's boring to read, like a fairy tale. So if you think about it at the worst extreme, it's easy to write about dystopia. ”

Song Xingye was still a little curious: "But, how did you come up with this virtual currency?" ”

Xu Zhe: "I've been explaining to the head teacher for a long time just now...... Alas, to put it simply, it is because there are too many problems with finance and economics in reality. This year's subprime mortgage crisis, you know what? ”

The girl shook her head.

Xu Zhe was taken aback: "You don't know? ”

Song Xingye blushed slightly: "You ask other classmates, everyone shouldn't know." We're junior high school students, so why do we look at those things? ”

Xu Zhe: "I'm sorry, I was abrupt. ”

At this moment, the English teacher on the podium finally couldn't help it: "Xu Zhe, do you listen to the class?" Even if you understand everything, don't bother other the other students! ”

The young man who was named looked helpless. Obviously, he was pestered and questioned, how could he bother others?

looked at Song Xingye next to him again - I saw that this girl was sitting precariously, and she had already spread out her English learning materials, and she looked like she was listening carefully.

————