Yi, Yicheng has always been keeping a distance from the underground warehouse managed by the Savior.

The reason is very simple. According to the instructions of the Dragoon and Crystal when he first came to the Savior Management Office, most of the things that were placed there looked dusty and randomly stacked were quite dangerous.

Among these things, some of them are contraband collected by the field saviors during their missions. They have not been destroyed or treated with danger for some reasons. For example, cat, dragon egg and Charlotte Cat are temporarily placed in the warehouse. However, in addition, there are also a large number of things in the warehouse, which are far more dangerous than these contrabands.

That is the new wisdom created by the Hong Tutor’s occasional fantasy idea.

As the most powerful technology-enhancing ability in the Celestial Empire and even the world, what the Hong Tutor called "strange ideas" has been baptized by strange props such as "disposable mecha", "pressure cooker bomb", "deep fantasy", and other strange props.

In fact, even Charlotte Cat and Cat who have lived in the warehouse for a long time, Yi Cheng has noticed that they, who are curious in nature, have always kept a distance from the strange machinery and devices piled up in the corners of the warehouse to eat dust. It seems that their biological instinct has reminded the dangers of those things.

Now, when the popular mentor suddenly said, "Among the props that eat dust in the underground warehouse, there is actually a time machine." In addition to being frightened, Yi Cheng actually has an inexplicable kind of gratitude and relief.

If you insist on saying this feeling is probably "Fortunately, I didn't touch these things randomly, otherwise I wouldn't know how to die."

This is by no means an exaggeration. If you don’t believe it, the woman’s words from the Red Man have already explained it.

"Although it has been useless for a while, the structure is a little aging, the system uses old programs from several years ago, and it is severely stuttered when running, and the data inside is also incorrect. However, if it is just used under the yi, there should be no major problem."

"Is there no big problem? What kind of problem will it cause?"

"Oh oops"

When he heard Yi Cheng’s unceremonious questioning, instructor Hong also smiled as usual.

"At most, there may be an error in the landing point when passing through the space-time tunnel. After all, if you import new data into this old machine, the time wasted is not a bit of it."

"So, how much does this so-called error mean?"

"Well, let me give you a simple example. For example, you should have been teleported to the port of Donghai Port, but because of the old data, the six places in that part were still the ocean ten years ago."

"So we're going to fall into the sea?"

Well, at least it sounds like this is not life-threatening, right?

Just as Yi Cheng was thinking this way, the next step, the smile of the mentor Hong made his hair stand up.

"For example, because of the height difference between the new building and the old building, the teleportation is in a free fall state, or because of the different size of the building, the body just stuck in the wall when the teleportation passes."

Are you a time machine or a murder machine? What a beautiful girl from the sky and a beautiful girl stuck in the wall will only cause deaths and no notebooks if you put it in reality!

Even the complaints were dispelled by the fear of death. Just when Yi Cheng had already believed in the words of Mentor Hong and was about to condemn him solemnly, Bai Ze next to him finally couldn't help laughing.

"Okay, the protagonist, Director Red is just scaring you."

"Why?"

Yi Cheng looked back at his deputy with a confused face.

"Although the technology of transmitting through space-time tunnels is not perfect now, the time flow itself will not allow accidents that are large enough to affect the law of cause and effect. Therefore, generally speaking, even if the wrong transmission coordinates are set, the time flow itself will converge, reducing the error to a level that does not affect reality."

""

Well, although I don’t understand, I always feel that this time and space teleportation is really amazing!

But if you think about it carefully, the evil villain dares to confuse people to travel back to the past to make trouble with the side effects of the ability of a paper-level abilities. This also shows from the side that the action of crossing the time and space tunnel itself does not seem to be dangerous.

"The real dangerous thing is to travel through the time tunnel and go back to the past."

The expressionless crystal saw Yi Cheng showing a relaxed expression, and finally couldn't help but remind him.

"The danger of going back to the past? Doesn't it mean that the behavior of changing the inherent history? In that case, the evil villain should be worried about the danger!"

"No, changing history itself is not dangerous."

To Yicheng's expectations, in this matter, Mentor Hong actually gave an amazing answer.

"How could it be not dangerous! Just like the right one! For example, that grandfather's paradox!"

The grandfather paradox, or the "grandmother paradox", is nothing wrong with that strange setting that Yi Cheng once mentioned before, "was so crazy that he wanted to travel through time and space to return to the past to kill his grandfather and grandmother."

According to this paradox, if an individual goes back to the past and kills his immediate family, he will become no longer there. However, in fact, this forms a dead cycle of time and space. If he does not exist, then no one will go back to the past and kill this relative. In this way, he will be in the past and return to the past and kill his relative.

"First, you have to be clear about the point, that is, under the confinement of the timeline, this paradox is impossible to exist."

“Huh? Why?”

Faced with the confident statement of mentor Hong, Yi Cheng blinked curiously.

"For example, time is like a long river, flowing from the source to the end. In this process, it is not ruled out that there are creatures living in this river, that is, we try to go upstream and make some moves to interfere with the flow of the river. However, no matter what, the river water will never reverse the flow, and will only bypass the objects that interfere with the flow of it and continue to move."

"And what? This doesn't explain the paradox just now."

"Oh, you're such a fool, the protagonist."

The dragon cavalry flew over Yi Cheng's head and gave him a crisp shudder with his finger bow.

"First, if yi goes back and kills his grandfather, then the timeline will be closed at the moment when this person kills his grandfather, causing changes in this past to prevent it from affecting the subsequent time and ensuring the continued existence of causal relationship."

"How to change?"

"It's very simple. For example, this person is actually Lao Wang's child next door. For example, the grandfather killed by this person is not his own grandfather. As long as the timeline itself changes slightly, it can allow history to continue naturally without being affected by this so-called paradox."

"Wait for this, will it cause a butterfly effect again?"

"It's not bad, it's not bad. It's better to say that the butterfly effect itself has produced the subsequent historical series of changes, in a sense, is also the inevitable result of this time and space shuttle. However, no matter what the subsequent changes are, the river is still the same river! That's it!"

""

Although it is a very complicated statement, Yi Cheng roughly understood the meaning of this after he thought hard and killed his own criticism of poor brain cells.

"In other words, we will go back to the past and stop the evil villain, which is itself a destined ring of time?"

"In theory, that is, what you think is the behavior you are trying to stop the long river of time is actually what you should do in this river."

Is the destined cycle of causality?

In fact, this theory, called the "destined paradox", is also an unproven theory in modern science. However, there is no doubt that this is much more reliable than the guess given by those who try to kill their immediate family to challenge the stability of the four-dimensional world.

"But I don't understand why there is still danger since these are all destined causes and effects?"

"Because, if history is changed, it is the destined result itself, then what we have to do now is to change history in the true sense."

Bai Ze sighed deeply.

"Simply put, history has changed since the evil villains traveled back to the past, and now we are actually in that changed history."

"Hey? There's something like this?"

Yi Cheng is undoubtedly confused now.

"If this is the case, whether it is news or other media news, there is no reason why there has been any change so far."

I was originally trying to ask a question, but suddenly, Yi Cheng, who was shining with inspiration, understood the reason.

"Because, we have the plan of the evil villain?"

"It's probably the case."

Instructor Hong nodded, which was considered to be acknowledging Yi Cheng’s statement.

"Because we have noticed the conspiracy of the evil villain, the history of this part of the yi part may be changed again, so the closing of the timeline has not been carried out so far."

Speaking of this, she clapped her hands and focused everyone's eyes.
Chapter completed!