Fang Ran didn't see the derivation error, because he couldn't understand it at all.

As a member of the Ang Polytechnic University, it is natural that Fang Ran also has a proud high score in the college entrance examination, and he is comfortable with all the courses related to computers in the university, but unfortunately, this does not mean that he can handle all the courses, especially the boring electrodynamics, divergence, curl, Maxwell's equations, etc., which makes him completely uninterested, and basically a temporary surprise solution when he arrives at the test.

Fang Ran's distress, he knows it, as for Shangguan Rin, who came to listen to the class for the first time?

I don't know where this little girl came from, Fang Ran didn't expect a teenage high school student to be able to understand electrodynamics, and sure enough, although Rin in the seat listened very carefully, she couldn't stand the bunch of cast eyes, she persisted for about fifteen minutes, and finally bowed her head slightly and whispered to Fang Ran:

"Fang Ran, is this gentleman talking about 'electric field', why can't I understand."

"It's not strange, I come to every class, but, the theory is fine, and when it comes to the specific analysis and calculation, I have a headache - hey, Rin, it's not normal that you don't understand, you should still be in high school, right?"

"High school, a stage of middle school?

You're wrong, if it goes well, I'll be graduating from college this year. ”

"-Huh?"

"Yes, and I have also learned the 'electric field principle', but, well, it should be that our knowledge systems are different, and the learning goals are also different; when I learned the electric field principle, I don't remember these complex analyses, nor have I done formula derivation or complex calculations."

The girl's words made Fang Ran a little confused, and he unconsciously glanced at Rin a few times.

No matter how he looked at it, he felt that the girl in front of him should be about seventeen or eighteen years old, but she just said "I will graduate from college this year", either she is too capable and skips grades continuously, or there is only one possibility, the country she comes from, the setting of the learning stage is completely different from that of E.R.A, if you think about it......

It's even stranger, Shangguan Rin, where did she come from?

While listening to the class, whispering, and patiently focusing the eyes of the class, I finally waited until the end of the class, and then I was relieved as if I had been amnesty.

He followed Shangguan Rin, who got up calmly, and after walking a few steps, he was slapped by Liu Fatzi, a classmate and friend by the aisle:

"Hey, Fang Ran, that, that's your—"

"Don't guess if you don't have it."

Answering in a low voice, Fang Ran shook his head, and escaped from the complicated eyes of his classmates full of inquiries, leaving only a classroom of students, and perhaps the same stunned lecturer, who continued to talk and chatter after seeing the girl's aura disappear.

"Fang Ran, your studies are generally organized like this?"

After listening to a class, neither of the two young people had learned anything, compared to yesterday's sunshine, today's Ang Sien was sunny and cloudy, Fang Ran and Shangguan Rin walked around the campus of Ong Polytechnic University casually, while thinking about when to go back to the apartment and look at today's calculation results.

In conclusion, in fact, for him, it is the same whether to see or not to see.

In 2027, at the age of 21, Fang Ran had been observing the world he was in for many years, and logically, he had already gradually clarified a thought; However, this idea made him feel terrified and difficult to accept, and it was entirely out of the motive of trying to falsify it, so he plunged headlong into the ocean of knowledge in libraries and the Internet, and wrote and ran a computationally intensive "branch prediction program" with the help of his algorithm and programming talent.

"Branch prediction", what the hell is this?

Fang Ran's personal achievements are remarkable, but when it comes to principles, one sentence that has nothing directly related to algorithms, programs, and computers can be made clear:

This process is based on all the existing data of human civilization to analyze the development laws of science and technology, and then predict the future.

"Predicting the future" is, at first glance, almost equivalent to "pseudoscience" or even "fraud".

However, Fang Ran didn't care, anyway, he never made this work public, nor did he talk openly and honestly with others, and even, because of his own efforts to keep it secret, he believed that if there were no NSA, CIA and other institutions involved in the investigation, then he should be the only one in the world who knew about it.

Since others don't know anything about it, what is the name, don't they all have the final say?

Of course, as a partial student from childhood to adulthood, to the "top student" who was admitted to the Ang Institute of Technology, needless to say, Fang Ran must have basic natural science literacy, and if the general public understands the superficial meaning of "predicting the future", then he will definitely not invest a little time and energy, just as rational people will not bother to study perpetual motion machines.

However, sometimes it is not impossible to say "prediction......

Thinking in a fugue, a trace of sound came into the ear hole, making Fang Ran wake up from his stunned state.

"Ah,——yes, what's wrong?"

"I mean, class,"

Noticing Fang Ran's wandering, Shangguan Rin was very tolerant of this, and she continued to say in a soft voice, "Before I came, I did some understanding, and your teaching method, no matter which school it is, doesn't seem to be 100% popular, isn't it." ”

"You mean...... Oh, you mean, 'There are always students who skip class.'" ”

Shangguan Rin's question, Fang Ran was a little obscure and incomprehensible at first, and then he reacted, unlike the ethereal electrodynamics in the classroom just now, and the two of them were not very clear, this little girl wanted to discuss the issue of "education", so he smiled at Rin who nodded, "Yes, this phenomenon is a manifestation of the so-called 'disgust with learning', and now there is a more and more serious trend, I think, there must be a reason for this." ”

"Yes, I would like to ask, since schooling is not compulsory, but voluntary, why do students choose to attend school and then give it up on their own?"

"It's not hard to understand, because I don't want to go to class;

Because you don't understand, or the things taught in class are outdated, useless, or other reasons - didn't you just listen to a class, how many normal people can understand this kind of class, or even be willing to eat it?

Let's talk about that class, 'Boundary Conditions of Electric Fields', which has long been fully simulated by computers and software, and many of the theories taught in the class? It's just that it's 'scientifically correct', and it may be useful to engage in scientific research, but the problem is that not everyone will be a scientist and engage in groundbreaking research, and these things are useless in engineering practice, and even if students master them, they will not be able to use them in their future work and life, so how can they be willing to learn. ”