On January 15, 776 in the cosmic calendar, in the library of the Kiba Star Glory Academy, there was no one reading at this time, only one student was reading, and he stood out very much, because he was Yuan Fei. Pen, fun, pavilion www. biquge。 info

It's not because he is Yuan Fei who stands out, but because Yuan Fei is wearing a strange thing on his body at this time, this is called a mobile healing chamber, his injuries are too serious, and it is difficult to heal for a while, so he wears this thing.

White, a bit like a chubby robot, many people praise him for his cuteness when he sees it......

Yuan Fei wanted to scold people, but he really didn't have the energy now, he wanted to put all his energy on reading, and he wanted to absorb more knowledge.

It should be said that Yuan Fei himself is a good student, and the books he has read dare not say that they are vast, but the sweat cow is counted, but at this time, human reading is not confined to paper, and there is no need to use a cow to pull it, nor does it need to be decorated in a big house.

So, what book is Yuan Fei reading?

Time, all books about time!

"Boy, you've seen so much, and in the end it can only confirm my statement, that's all." Cheng Lao's voice has actually never been broken, but Yuan Fei, this guy, doesn't like to listen to this old man's words very much now.

It's been two days since he returned to Kiba, and the relationship between the two of them is still in that state of almost a cold war, Yuan Fei feels that Cheng Lao is dishonest, and especially Cheng Lao, this guy explained to Yuan Fei why Qi Qingxuan is like that......

Cheng Lao said this at the time:

"Yuan Fei, you don't have to worry about the change in Qi Qingxuan's appearance, because with the current scientific and technological means of human beings, as long as she gets the corresponding supplement, then she will recover......"

Well, after seeing Qi Qingxuan's aging appearance, Cheng Lao, this guy is very good at talking, and comforted Yuan Fei before talking about the reason.

"I don't have one!" Yuan Fei, this guy is a little dishonest in his consciousness.

Actually, it's not dishonest, it's just that when he thinks of Zhou Meiyun, Yuan Fei is a little ......

"Okay, I'll give you a good explanation...... "Cheng Lao began to talk about his big truth, "First of all, I must say one thing, that is, how did the time come about......"

"Does that need to be said?" Yuan Fei's attitude towards Cheng Lao will not be good anyway.

"Of course." Cheng Lao, this guy didn't seem to be aware of it, "There is no doubt that time does exist." But the thing is, time is defined by humans! ”

This one...... Just like this, Yuan Fei stopped interjecting, because there was an instant reaction in his mind, which was a very basic, but very fresh knowledge.

"We all know that time is moving forward, we humans see the rise and fall of the sun, and we define the day at a time, ancient human beings only use the sun as a reference, I have told you before, but have you ever thought that there is a huge limitation in this?" Cheng Lao asked.

"You mean, because we're on Earth, or a planet like Earth?" Yuan Fei thought for a moment and gave the answer.

"Yes, it does. Our human definition of time is limited to Earth and such planets. Or, more broadly, our human time is very small, because the planets are in the universe, very, very small. Our human time, to put it bluntly, is nothing more than a 'small time', so have you ever thought that if you break through this limitation and enlarge the scale of time to the level of the universe? ”

"What do you mean......"

After listening to Cheng Lao's words, Yuan Fei seemed to think of something, but he didn't seem to have it, this is really ...... But this time it was okay, Cheng Lao immediately gave Yuan Fei an answer.

"Originally, it was up to you to figure it out, but now it's about the same, and we're running out of time. Yuan Fei, listen up, with our current knowledge and scientific and technological level, we can make such a conclusion, that is, if we look at the universe as a person, the universe's definition of time, that is, the universe's own time, that is, there is no time! Cheng Lao's words are simply speechless!

"Don't have time?" Yuan Fei really couldn't imagine that after a long time, it would be such an answer, but it was ......

"But there's time!" Cheng Lao immediately said this again.

"I want to punch you, you know?" Yuan Fei's reaction this time was very direct.

But Cheng Lao was not joking, he continued to say very seriously: "The answer is very simple, because on the scale of the universe, time is space, and space is time!" ”

This statement......

Yuan Fei only felt that his brain seemed to be booming, and something had exploded!

That's right, time is only defined by us humans, so does he know the universe?

Moreover, combined with Yuan Fei's understanding of the classic physics work, "A Brief History of Time", in fact, this book has already written such a theory......

Time came into being after the Big Bang, and the reason why time keeps moving forward in a positive direction is because the universe is constantly expanding, and not only that, but not only time is maintaining a positive progress, but also the energy arrows of the universe are consistent with time, and the arrows of cause and effect in philosophy are also consistent.

With the birth of the Big Bang and the expansion of the universe, they are constantly moving forward!

So, if we look at the universe as a person, what is the difference between time and space in his eyes?

To put it simply, the expansion of space leads to the advancement of time, and of course they are one, and even in terms of performance, the reverse is true, that is, as time advances, the universe continues to expand.

And this inference can only be used as a theory, or as Mr. Hawking said, this is just a prophecy, because this inference is not possible to be experimentally proved with the current science and technology of human beings, and it cannot be practiced, the universe is too vast, and we do not know its specific time scale and space scale, so it can only be derived through theoretical derivation.

But it is clear that this is a correct prophecy, then......

Yuan Fei had actually already thought about why Qi Qingxuan was aging!

Quite simply, she jumps space, but in fact, it also jumps time, and of course she ages!

In this way, the answer came out, and in fact, all the above derivation processes, if you look at it the other way around now, are really very simple, all of them are simple logic, but such a simple thing, if you don't dig deep and think about it, Yuan Fei knows, he won't understand it at all.

"Then why haven't we aged?" Yuan Fei couldn't help but ask.

"You've got a good understanding, boy." Cheng Lao was happy, of course he understood that Yuan Fei should have figured out the previous truth, which was very good, so Cheng Lao said: "This is difficult to explain, just like we can't study the Force thoroughly now, it may be the characteristics of the ability, or because Qi Qingxuan is a space jumper, so the forces of time and space in the universe are acting on her, of course, these are all problems that cannot be studied thoroughly at present." ”

Obviously, although such an answer is not satisfactory, but the truth of this world is like this, human beings have too many things that they don't understand, especially when human beings feel that they understand enough thoroughly, then there will soon be more things that we don't understand, so strange, but this is also one of the driving forces for human beings to move forward, we have to figure out this universe!

"But ......" Yuan Fei suddenly thought of another question, "I almost understand the reason, but judging from the previous space jump, Qi Qingxuan jumped from Kiba Star to xn7693, but jumped back from xn7693, so isn't this a reversal of time?" ”

That's right, Yuan Fei remembered what Mr. Feng Luan said, that is, time is irreversible.

And Cheng Lao quickly answered this question, "That's not a reversal, coming back from xn7693, this is actually a positive jump, to put it bluntly, the time defined by us humans is advancing, and this point of progress has changed, and the base point has become xn7693, and because of this, the cosmic coordinates currently used are based on time, energy, and events as references." ”

It turns out that there are such reasons for the problem of cosmic coordinates, but Cheng Lao did not completely reveal all the reasons......

"In other words, Qi Qingxuan is doing acceleration?" Yuan Fei really realized a little truth again.

"That's right, so, this seems to explain why she is the only one who has aged, of course, this cannot be used as a definitive theory, and we still can't figure out the real reason why the space evolutionary is getting old." Cheng Lao's answer at this time was very, very much like a scientist.

Yuan Fei noticed this, because this is so strange, a lot of what Cheng Lao told him before is different from science, and even anti-science, right?

But this topic was not explained, and Cheng Lao gave Yuan Fei another question, he said this, "So, have you ever thought that in the coordinates of the universe, what is the role of events?" ”

Event?