"Yo, what's wrong. You're now like an old-fashioned video tube TV with broken wires, and the picture is covered in noise every now and then. Do you want to go into the factory for maintenance? I highly recommend reincarnation again, and have the opportunity to go back to Earth directly. ”

The one who spoke, of course, was the fat one. Lin angrily: "I'm already very sick, can't I have some good words and use a good metaphor?" ”

"Then, the analogue knob is not very bright, how to tune it, the channel can't be adjusted to the radio broadcast?"

…… Looks like I'm pushing myself too hard, Lin thought. Ignoring the fat man, Lin asked, "Did I do anything when I came down before?" ”

The second incarnation said calmly: "It seems that you really forgot something." ”

"Something I forgot?" Lin repeated, of course, he was also curious and confused about the content of the conversation, "You said I forgot, that is, you still remember those things. Aren't we the same person? Why is there something that only you know, but I don't. It's like you're here to kill the invading nightmare creatures, and if I hadn't just come in and encountered them, I wouldn't have known about them. ”

"We're your subconscious. Something that isn't important, something that shouldn't be remembered, good or bad, you forget, and we know that it's normal. Otherwise, - "The fat house incarnation grabbed the middle two incarnation with one hand," - do you want to recall what black history you left behind in this era? ”

"No, I was wrong, please forgive me. Forget about such topics. - "Someone just wilted, don't remember what should be forgotten," - I just want to know what I did before......" Before he finished speaking, a new ornament caught Lin's eye on the magic tower on the second floor.

What is the content of those ornaments, what is the purpose, for Lin Lai, who has been pondering this aspect of the process for a long time, although it is not clear at a glance, but after a little thought, you can almost understand its function. So soon, Lin understood what this magic array carved on the second floor by himself was used for.

"It's ...... Principal component analysis? After understanding what he had done, Lin also remembered most of the causes and consequences. Walking around the magic tower, I confirmed the logic of the program that had been carved out, and also realized that the completed part was incomplete.

This is not to say that the principal component analysis procedure is incomplete. In the field of data analysis, whether it is algorithms or other tools, there are only the most suitable ones, and there is no best. That is, each method has its own conditions for application. Therefore, if you want to reach a certain level in such a field, you can't go through it all in one move. Mastering the cross-application of multiple methods is the last word.

That is to say, the program on the second floor is only usable, not yet complete, let alone impossible to achieve. Wherever a program can be perfect, it's all about finding bugs, updating, finding new bugs, updating again, and then accumulating enough updates to revise it. If the update and revision are stopped, either the maintenance company has collapsed, or something new has come out, and the old one has been released.

So there's still a long way to go. However, Lin Ke didn't want to start work now, and his physical condition was not very good. There was also a hot answer outside, if she waited too long, it would be difficult for her to predict what would happen.

However, before he left, he saw that some of the program code was quite strange. It's not part of the PCA (Principal Component Analysis) program, and it doesn't seem to have anything to do with the logic of auto-loops and auto-updates, like a piece of redundant and useless program code. This is also not the part of the test program code that is used to check if the program output is correct.

I couldn't figure out how this program could help this large section of mathematical logic, and it might even cause mistakes, so Lin waved his hand and deleted this large piece of program code. The first step to streamlining and optimizing is to dare to delete things, isn't it? After doing all this, I felt much refreshed, and then I left the dream.

Seeing the original body leave, the fat house incarnation sighed. I was a little unimpressed that the MOD that I had worked so hard to complete was deleted like this. The junior high school student himself said: "It seems that even if he doesn't explain the things that have been subconsciously known, he will have an intuitive reaction. ”

"Killing a dog is a guy who doesn't know how to be considerate, and he deserves to be reckless for the rest of his life."

"You're self-destructing. The original body is cultivated outside, and it is the royal sister's, and Yan Ran is a life victory group that has escaped from non-Europe and entered Europe. If you want to be reckless, you can only stay in the dream realm, unless we do it. But if you dare to have that fucking disgusting thought, I'll stick this unfinished magic tower into your asshole. ”

"Hey, that seems to be a lot of fun. Come and try it? ”

Rewarded the fat man with a contemptuous look, and the figure of the national middle school student in uniform gradually disappeared in this space, Zheng Duliu The fat man sighed again, "The second middle school self is really boring." ”

In the real world, open eyes watching the flames of the campfire flicker. It took a while for Lin Wushen's eyes to focus again.

Sensing that someone had returned from a dream, Fen asked, "How, is there an answer?" ”

"Hmm." Nodding, after Lin sorted out his thoughts, he came out with his thoughts and what he had done. Fen was surprised by her answer. "Starting mathematically, I never thought of such an approach."

"It's not surprising that no one in a math math would be used to thinking of it as a solution. But in fact, everything in the world, the ultimate explanation is mathematical. If there is an explanation, it only proves that there are places or phenomena that we have not yet observed. ”

"And then there's the high-dimensional creatures."

"Yes. Interpreting those beings in this way can also explain why they are not free to move freely in this side of the world. Because high-dimensional organisms want to move in the three-dimensional world, they must reduce their dimensions or rely on projections. ──”

For example, if you want to become a two-dimensional human being, you can draw yourself into a picture, a comic, or even an animation, which is a kind of projection.

As for those who reduce themselves to two-dimensional, they are not wandering spirits, like ghosts and ghosts that live in paintings; Or it's sci-fi, turning one's consciousness and memory into something like a computer virus, living between the screen and the network. And these are not things that can be done easily, they only exist in fantasy Zheng

Either method has its own difficulties and drawbacks. The second is how the information they provide will be understood by human beings, which is related to the subjective cognition of each Rao, that is, faith. And when the subjectivity is already filled with fear, evil, and so on, then their appearance will also be terrifying and evil. ”

"So use mathematical methods to reduce them to dimensions." Finn added, hesitating.

"That's not accurate. The information they provide should be reduced to a form that we can understand by means of mathematics. It's not that we can reduce them to a dimension, we can't do that. In the past, people tried to approach and understand them by means of faith or learning. But this involves too much beautification or ugliness of subjective consciousness rather than reality. Dimensionality reduction using mathematical methods is an attempt to find out important information from a lot of information, merge similar information or selectively delete it, and finally leave a 'most appropriate' way of explanation, which is then understood by us. This seems to exclude the influence of subjective consciousness, and may be closer to the real appearance, but in fact, what is seen in the end is still not the most primitive one. And different methods, different parameters, will bring different results. ”

So either way, it's not their truth. It can only be a cognition that is somewhat close to the truth. ”

"Yes. That's accurate enough. However, most people can only use the former method to try to understand. The latter approach must rely on auxiliary means in order to be realized. And I relied on the computing power of the magic tower in my dreams to see the world after I was reduced. It's just that what I can't understand is why I don't just seem to see, but I seem to be able to walk in it. ”

Even this talented man from a thousand years ago, Fen had spent quite a long time digesting what had come out of the forest. Compared with what she knew, everything she had experienced, all kinds of experiences, none of them were enough to overturn the content of Lin Suo, and even constantly confirmed the correctness of those words.

The understanding of the gods by mortals is exactly so unpredictable. Everyone has their own set of interpretations, and those mortals who serve God also have their own set of understandings, and the person who has slaughtered God and even touched that threshold has a deeper understanding.

As long as the gap of that step is crossed, maybe your life experience will be completely different. It is estimated that he is among the evil gods, and he will fight against goodness all his life until the time of his fall.

But the world you can see after that step is not fascinating. Or after the flames of vengeance have burned themselves out, all that remains is a muddy empty shell. Until now, it feels like being alive again. It's because I discovered a new world and gained knowledge of a new world. Or is it because of ......

"Cognition." As if to prevent himself from admitting something meaningless, Finn shifted his focus. From her point of view, explain Lin's problem. "I've said that magic is the power to command, to change the status quo or to change perceptions. The light object experiment that I did with you is a kind of magic that changes cognition. ”

It was an interesting experiment I did when I was in the Tower of the Great Sage. The experimental material was a very heavy cash box, a wooden box full of precious metal currency, which was difficult for even Hercules to carry easily. In front of Lin and Kaya, Fen cast a ring of apprentice-level magic, Light Object Technique. Worthy of the strength of the lich-level, Kaya, who was very thin at the time, easily picked up the cash box.

Then let Halumi, who was not present, in, and realized that the cash box had already performed light object magic. However, no matter how hard the blonde girl tried, she couldn't move the cash box because it was too heavy.

What's even more interesting is that the weight of the cash drawer is measured in the standard way throughout, and the weight remains the same before and after the use of light object magic. It's just 'the perception that has changed'. And this change has brought about a very different result.