Life in the collapsed world from scratch

That's fine.

He shook his head and said aloud: "You should feel lucky, if I wasn't the person I am now, I might not care about the life and death of human beings in this world at all."

Kevin knew that what the boy said was not wrong.

If he is really a pure egoist, he has the ability to take the people he cares about to escape to other worlds, and there is no need to fight against Honkai in this world.

But, on the other hand, so-called human supremacy is no better than pure egoism for individual human beings.

Rather, true human supremacists don't care about individual sacrifices at all.

... As for other sacrifices other than human beings, I don't even care about it.

"He is right. In your bones, you are indeed one of the most cruel and cold-blooded people I have ever seen." Kevin stared at him and said in a cold tone.

Where did this rumor come from?

Cheng Xi couldn't help complaining.

"Don't spread rumors or believe rumors, you have been fooled by Otto." He tried to save himself a little reputation.

Kevin didn't care about the boy's words, of course he wouldn't judge a person just because of other people's one-sided words

However, these are not the focus now.

He knew very well in his heart that the reason why the boy didn't choose to escape was not just because of this.

"You also have your own pride." Kevin said aloud.

This pride does not come from inner arrogance, or stubbornness to fight to the end, but from self-confidence.

"...You have an absolute chance of winning."

He looked at the boy in front of him, and continued

"You don't think you will lose to Honkai, you think you can definitely win the final victory."

"Not victory."

Cheng Xi shook his head, which was regarded as a denial, but also an affirmation of his words

After a short pause, he continued meaningfully

"...but a real, happy ending that everyone can have..."

Facing the boy's words, Kevin frowned unobtrusively.

How can he be so confident?

In the face of the collapse, even those outstanding people in the pre-civilized flame moths dare not say that they can win steadily, and in the end they can only formulate the worst bottom-line plan full of despair like the stigmata plan. The final "kindling" rests on the people of future generations.

If the truth about the stigmata plan is only known to few people, then the plan that the young man wants to implement is truly almost unknown

Kevin thought back to the things the boy had done over the years.

Whether it is the core matrix that spreads all over the world like the stigmata network, or the ark that destroys the stars, it can be said that they are all preparations for crossing the end

Of course, he didn't leave himself a way out.

But those retreats are not so much a glimmer of life for himself, but as a scientist and researcher, he habitually takes all situations into account. It can be seen from the degree of intention that he has no Didn't put too much thought on that.

If this is the case, it is completely impossible for 5.5 to achieve what he called "a happy ending that everyone can have".

...Kevin had an intuition in his heart

Cheng Xi is excellent, he does not deny this.But he also didn't feel that the boy possessed talents that surpassed all the predecessors of the previous civilization.

Therefore, the young man definitely has means far beyond the conventional imagination of human beings, which can support him to conceive a plan that can even exceed the best ending predicted by the flame moth.

"...What do you want to do? Cheng Xi."

For the first time, Kevin called out the boy's name.

He stared closely at Cheng Xi's eyes, and asked aloud:

"What is your plan?"

.......

Chapter 730: Return to Zero and Cycle of the World (There are many theories, you can skip it)

What exactly is Cheng Xi's plan?

Although they are not completely enemies, the positions of the two sides so far can be said to be opposite to a certain extent. Under such circumstances, it is impossible for Cheng Xi to reveal all his plans just because of a question from the other party. ?

But well

"You can think of it as a transaction," Kevin added after a pause.

In that case...

"Kevin, do you think there is some kind of cycle in the universe?" After thinking for a while, Cheng Xi looked at the other party and asked.

Kevin frowned slightly.

The young man's words reminded him of the power of the Herrscher of the Last Yan... Final Yan returns to zero, restarts the world, and allows civilization to return to a new cycle of reincarnation

... But obviously, what Cheng Xi wanted to say was not this.

"Poincaré's theorem proves that in a closed system, any particle must be able to return to its position infinitely close to its initial position after a long time, although the length of this time is far beyond what we can imagine, but It is bound to happen. Such a cycle is called a Poincaré regression."

Cheng Xi held Xiao Cangxuan in his arms, ignored her expression of "you started again", and continued:

“整个宇宙13发生庞加莱回归的时间，约为10^10^10^10^2.08年……尽管这个时间漫长得可怕，但并不是无限，甚至是可以被科学记数法写出来的。”

The "circulation" here is not the reincarnation of everything, but just the possibility that all the particles in the world will reproduce the state at this moment after a Poincaré return time.

As for how it will develop in the future, it is another different random event.

This theorem only shows that even if it is allowed to develop freely without the interference of any other force, although the cycle of the world is difficult, it is not impossible.

"In addition to this, there are other theories such as cosmic inflation, which believe that the universe will return to its original original state after a period of development."

Cheng Xi continued.

All of the above are just foreshadowing, what he wants to say next is the key point

"...And among them, there is a view based on conformal symmetry called a universal cyclic universe."

Cheng Xi patted the head of the girl in his arms, Xiao Cangxuan showed dissatisfaction with him, but he stretched out his hand obediently, and projected two different virtual images in mid-air

These two images are two two-dimensional coordinate systems, and there are two identical circles respectively.

"The so-called conformal symmetry is an important feature of general relativity, through which we can transform a three-dimensional anti-de Sitter space into a conformal two-dimensional space."

While talking, Cheng Xi adjusted the positions of the two images, causing the angle of one of the circles to shift slightly

It was only at this moment that Kevin discovered that it turned out to be a sphere, not a circle. It was only because he was facing him just now and there was no other reference object as a reference, he visually mistook it for a circle.

"It's not a mistake."

Cheng Xi corrected the misunderstanding in the other party's habitual cognition

"In this theory, after a series of transformations, the two are equivalent."

In fact, it is very simple to understand, just like the optical illusion that Kevin saw just now... In fact, it is not an illusion, just like a photo, the world seen by human eyes is actually two-dimensional, but in the follow-up The brain "renders" it in three dimensions during processing.

Three-dimensional images are originally an "illusion" for humans.

Once this is clear, it will be easier to understand next.

"For two conformally symmetrical figures, the only difference is the scale,

…For example, for a circle, the only difference is the radius, two circles with the same radius, we can say that they are the same circle. "

"In the universe, the scale is distance."

Cheng Xi said, waved away the virtual image in front of him, and rebuilt a new coordinate model

"But because the speed of light is an unchangeable constant, this distance can be equivalently converted into time."

He snapped his fingers lightly, and the coordinates below the coordinate axis changed from s representing distance to (ct) representing the speed of light multiplied by time.

"If there is no matter in the universe, only the world composed of photons with the largest entropy value remains, the universe becomes a conformal symmetry."

So when will the universe become that way?

"As we know, the beginning and end times of the universe are meaningless.

…Time ends at the heat death. The heat death universe no longer has matter and time. Similarly, there is no matter in the singularity, and there is no concept of time. "

Cheng Xi waved his hand lightly, and all the nebula and matter in the model turned into a chaotic state with the highest entropy value, disappearing into the image, and the entire universe seemed to be empty.

"Then, we can conclude that ... in this universe where time has lost its meaning, an infinite universe and an infinitesimal singularity become the same thing."

In simple terms, through conformal symmetry, people can equate the end of an infinitely expanding universe with a singularity of the Big Bang.

Cheng Xi raised his head, looked at the white-haired man not far away again, and said meaningfully:

"The end of the universe and the beginning of the universe are connected in this way... Don't you think it's amazing? Lord Kevin?"

"..."

After hearing Cheng Xi's words, Kevin fell silent.

"...He doesn't understand, does he?"

Xiao Cangxuan raised his head, gently pulled Cheng Xi's collar, and said to him with some worry in his heart.

How did this child talk?

Cheng Xi patted her head angrily.

After all, he is also the leader of one of the three major organizations that rule the world. He once stayed with Dr. Mei, a great scientist, for so long at 770, so he couldn't even understand such a simple theory, right?

The two were making small moves in private. After a long time, Kevin finally spoke again:

"...you remind me of some people."

is it?

Cheng Xi tilted his head slightly, not surprised by this... Who hasn't had a sense of sight yet.

"...As you wish, the World Snake will share some of the information with you." After he breathed a sigh of relief as if he had gotten the answer he wanted, Kevin continued to speak like this.

As he wished?