130.

After listening to this, Shen Bing thought for a while and said, "So, our next task is to create such a world line?" ”

"That's right, although we are punished by the law of constrained causality, we cannot have direct contact with the obsession until we have unlocked the key causal entanglement. Pen? Interesting? Pavilion wWw. ｂiquge。 But through different world lines, observing the reaction of the obsession body and observing whether it can finally transcend is the best and only way for us to communicate with the obsession. Ye Yu said.

Shen Bing nodded and said, "I understand, after killing the two-headed snake before and unlocking the first causal entanglement point, we created World Line A." In the ending of World Line A, Huang Li did not die, and Wang Bing also enjoyed his old age under Huang Li's care. But as a result, Wang Bing still failed to detach himself in the end, and he still became an obsession after his death. This shows that Wang Bing's obsession does not lie in Huang Li, this is Wang Bing's first answer to us. ”

"Well, yes, that's it." Ye Yu was relieved, "Now that the key causal entanglement point of the poisonous spider has been solved, we can create a new world line, and I am going to call it world line B." In World Line B, we need Wang Bing to find Emily and discover that she is Wang Lichun. Then let Wang Bing and Wang Lichun's family live happily together and enjoy their old age in peace. ”

"If Wang Bing can transcend because of this, our backtracking mission will be over. If Wang Bing can't get rid of it, it means that Wang Lichun is not Wang Bing's choice, and we still need to go back to an earlier time and change Wang Bing's life in other directions. ”

After Shen Bing understood what he was going to do next, he suddenly thought of a question and asked, "I have another question." ”

Seeing that Shen Bing's curiosity was so strong, Ye Yu patiently replied, "What questions, just ask." ”

"Now that we have unlocked the causal entanglement point of the poisonous spider, we want to create World Line B, but will it be as smooth as making World Line A? When we made World Line A, we were sure that there would be no key causal entanglement points after the two-headed snake. Because according to the primordial world line, not long after the key causal entanglement point on the two-headed snake's body appeared, Wang Bing died. So it's pretty certain that the two-headed snake is the last key causal entanglement. ”

"So, when we made World Line A, we didn't encounter any resistance."

"However, there was an interval of 3 years, 2 months and 21 days between the key causal entanglement point of the venomous spider and the key causal entanglement point of the two-headed snake."

"In case, in such a long time span, the existence of other key causal entanglement points, will it hinder us in creating World Line B?"

In the process of Shen Bing's questioning, Xiao Zuo also cooperated very well on the light screen and made a schematic animation.

In the light screen, there is a long rope covered with dense knots.

Then at the end of the long rope, a large knot is untied, so that the part of the long rope at the end of the long rope can swing freely in a range.

Then, immediately after that, along the end of the long rope, backtracking forward, after crossing many small knots and scattered large knots, another large knot was untied at the rear of the middle and rear of the long rope.

After untying the large knot in the middle and rear of the rope, there is a long rope in the middle and rear of the long rope that can also swing in a range.

However, it didn't take long for this part of the long rope to swing, and it was restrained back by other large untied knots behind it.

This is the question asked by Shen Bing, because Ye Yu unlocked the causal entanglement point of the poisonous spider this time, and directly crossed the time span of 3 years, 2 months and 21 days.

After unlocking the Poison Spider's key causal entanglement point, it is possible to change a new world line for a period of time before and after the Poison Spider unlocks the entanglement point.

But will this new world line be bound back by other key causal entanglement points later in time over time?

After all, unlike the two-headed snake, after the two-headed snake's key causal entanglement point is unlocked, because there is no key causal entanglement point after him.

And the poisonous spider and the two-headed snake, between these two key causal entanglement points, the time span is so large, Shen Bing doesn't believe that such a long time span will not exist without the existence of key causal entanglement points.

If the newly created world line B will be bound by other key causal entanglement points in the future, it is equivalent to saying that Ye Yu and Shen Bing will have to work hard to find out and unravel all the key causal entanglement points between the poisonous spider and the two-headed snake, the two key causal entanglement points in this time interval, in order to completely manufacture the world line B.

However, for Shen Bing's concern, Ye Yu just smiled appreciatively, and then said, "There is no need to worry about this problem. ”

Seeing Shen Bing's puzzlement, Ye Yu explained: "Do you know cause and effect, naturally there is a cause first, and then there is an effect?" ”

"Of course I know this," Shen Bing replied, "because in the normal universe, the dimension of time flows in one direction and cannot be reversed. Even if we go back along the long river of time in this way, it is because we are not the original people in this universe and do not belong to the long river of time in this universe, so we can jump out of cause and effect and go back in time. ”

"So, even if we go back in time, it's just a limitation for the two of us to go back in time and back to an earlier point in time. Our time regression has not changed the normal flow of time in this universe, it is still a one-way flow, and cannot be reversed. ”

Shen Bing's statement, on the light screen, also appeared a schematic animation.

In the light screen, there was a long river gurgling, and then two people walked along the river, from downstream to upstream.

The scenery that these two people saw in the lower reaches of the long river was completely different from what they saw upstream. They saw completely different landscapes and experienced completely different things in different locations on the long river.

However, although they can swim up the river, they cannot say that they have changed the direction of the river.

The long river still flows from top to bottom, unchanged for eternity. It doesn't change its direction just because there are two people swimming against the river by the river.

Shen Bing continued: "In my research topic, my research results show that the dimension of time is an extremely special dimension independent of the spatial dimension, and it will only pass in one direction. Because of this, cause and effect must have a cause before there is an effect. And it is impossible to have an effect first, and then there is a cause. ”

Ye Yu praised: "Yes, I didn't expect you to have such a deep understanding of cause and effect." ”

Shen Bing's face blushed slightly: "After all, I am a theoretical physicist, and when I study parallel universes, I will definitely involve some research on cause and effect, similar to the thought experiment of grandmother's paradox, which is actually a kind of thought experiment research on cause and effect." ”

"Well, that's right, as you said, in fact, in the study of imperial theory, the time dimension is also a special dimension that cannot change the direction of flow. This is almost considered the law of vanity. ”

"Although Imperial technology has reached the point where time can be manipulated freely, it is also, as you say, take the backtracker out of the river of time, and then the backtracker to swim against the current. It's not the entire universe that turns back time completely. The proof is that when the backtracking ends, the universe continues to flow in a normal direction and at a normal rate. ”

"Although when we go back in time, we give the illusion that time is going backwards. But this is fundamentally different from changing the natural flow of time in the entire universe. ”

"Therefore, the time dimension can only flow in one direction on a natural scale, and cannot flow back naturally, which is called the third law of the void in the void theory."

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(Today's two chapters are complete, and this third law of the void is a core of the book's worldview, and it needs to be marked emphatically.) ）