This feeling is very peculiar, the love is obviously in front of his eyes, but in his heart is endless worries and more intense longing, Yun Ya Nuan in his mind, it is still that war-torn era.

Hearing the sound of dressing, Yun Yanuan woke up in contemplation, he turned around, looked at the three girls who had already put on the grass skirt, and tried to coincide with all his thoughts.

He needed an explanation, an explanation that made him feel good to be here.

"Kexin, let me ask you a question, I know you know a lot."

But this little girl likes to be asked questions, especially Yun Yanuan's tone is quite sincere, as if a student is talking to a teacher, and he is busy saying: "Tell me what the problem is!" You're welcome, as long as I understand, I'll tell you. ”

Yun Yanuan sat up and asked:

"Teacher Kexin, if time travel really exists, then what will happen if I go back in time and do something that I didn't do at all? Will everything change in the future? ”

Kexin thought for a moment, and then said:

There are two possible outcomes to this question. The first is that your actions have completely changed the future. This is the concept of quantum physics, in the quantum world, the past and the future exist at the same time, and time does not exist for it.

And quantum has a very peculiar mechanical phenomenon, that is, quantum entanglement. That is, two particles, even if they are not in the same space, have an indescribably long distance, and the particles are influencing each other at the same time. When one of the particles is manipulated, the other particle will also change its state.

This speed is beyond the speed of light, not limited by space and time, and Einstein once called it a ghostly long-range effect. According to this theory, then you have changed your behavior in the past, then you will inevitably change in the future at the same time, listen well, at the same time.

And according to the topological chain reaction, which is often called the butterfly effect, then the whole world will change because of your actions, which is a terrible thing, and the consequences are completely unpredictable, but it will not cause the timeline that people speculate about collapsing, because there is no time in the quantum world, the past and the future exist at the same time, and the quality of space has not changed. ”

Yun Yanuan nodded slowly, this theory made him happy, if so, then the love in front of him is them, and they in the chaos of war are a dream of beauty and blood.

"What's the second outcome?"

Yun Yanuan hurriedly asked.

Kexin paused, sorted out his thoughts, and said:

"I don't really agree with the second outcome, but it doesn't mean it doesn't exist."

The girl first expressed her attitude and position, and very officially confused the possible refutations before continuing:

"The second result, the theory comes from the multi-dimensional space of superstring theory, human beings are three-dimensional creatures, so we can only see the three enclosures such as length, width and height, and we cannot see the existence of the time dimension and above.

The point is zero-dimensional, the line is one-dimensional, the surface is two-dimensional, the volume is three-dimensional, and the timeline is the four-dimensional space. The five dimensions above the four dimensions can answer this question for you.

The so-called five dimensions is the place where parallel space begins to appear, when a person is faced with a choice, each of his choices may create another timeline, and finally the timeline is like a big tree, with thousands of branches.

So, if, as conceived by Superstring Space Theory, you go back in time and change certain choices and behaviors, then you won't change anything in the original timeline, but you will have a completely different timeline.

That is, there will be an infinite number of you in the universe, but the circumstances are different, maybe you are dead, but you are still strong in another dimension, you may be a beggar, but in other dimensions, you may be an emperor.

We are in the world of science and technology, maybe you in another space, maybe you are in the feudal Warring States Period, this is the fate of different spaces produced by choice, coexisting with each other but different, some timelines have even collapsed, but other timelines still exist and continue. ”

"Enlightenment!"

After Yun Yanuan heard this, he burst out almost at the same time.

"What enlightenment?" Ke Xin wondered.

"It's okay, it's okay!" Yun Yanuan waved his hand, this thing couldn't be explained.

But in my heart, I thought:

"The fate of each timeline is completely different, and the extended lifespan is not the same, the Dragon God, the Yin Emperor, the enlightenment in their mouths, is it this kind of parallel space shuttle, from a timeline that is about to be destroyed, to another timeline that still exists, no, no, if that's the case, then why do they have to wait, they already have the ability to open the door of space, why wait?

Why do you need to accumulate a strong army? By the way, when they go to another timeline, they will inevitably face their possible self, or other more powerful beings, which is aggression and there will inevitably be war. ”

"Devil Six, what are you thinking, so obsessed!"

Kexin saw that Yun Yanuan was in a daze for ten minutes, his eyelids did not blink, his eyes did not move, and he couldn't help but ask worriedly.

Yun Yanuan smiled, both of these possibilities were perfect for him.

"But Xinxiao Nizi, you said, in our current position, on the same island, will there be these other four of us, who are also traveling the same long distance, but they are different from our choice."

But after thinking about it for a while, he nodded and said: "I can't rule out this possibility, if the theory of parallel space is true, but it's still the same sentence just now, on the line of time, I believe in the theory of quantum physics more." ”

It was a wonderful night, and the doubts in Yun Yanuan's heart were dispersed because of the hearty explanation.

If the first one is possible, then one's actions will definitely bring a perfect future to mankind.

If it is the second possibility, then he will eventually meet them in the timeline, they are still in the war-torn world, and the door will eventually open, and he will definitely wait here, or go to find them.

A good night's dream, that reunion, that warmth, let Yunya Nuan cry in a happy dream.

Human beings do not have the disaster of rebirth of the dead, civilization continues, and happiness still exists in the world.

But is that enough? Of course not, Yun Yanuan knows too many secrets, and now that humans don't know about the existence at all, there are still many things he has to do, and now is just the beginning.

He wants the witch clan to no longer exist, the god clan is no more, the Dogon is destroyed, and the reincarnation is back in the hands of humans, and humans are the real and only masters here.

In the early morning of the next day, the four of them packed up the basket, even two rabbit skins, and the three women were reluctant to throw them away, Yun Yanuan did not stop them, they were happy.

Diana got a lot of white flint and put it in the back basket like a baby, this woman is what she used to be, and she hasn't changed at all, so what do you still wonder? Still struggling with what? Enjoy it all.