Socrates said, "Now I can confess many things to you." ”

"First of all, from top to bottom of this building, the speed of time is gradually accelerated, one hour on the first floor is equal to half an hour on the second floor, and it is equal to twenty minutes on the third floor."

"Time accelerates as the number of floors deepens, that is, when we get to the next four floors, one hour will be shortened to twelve minutes."

"The reason why floors can't go backwards is because different floors have different time flow rates, and you can't go from a high-speed time flow rate to a low-speed time flow rate, you can only go from top to bottom."

"And because of that, we're very, very short on time to explore, because the further down we go, the faster time flows, and the less time we have."

Su Yun was taken aback, he realized that he had ignored such important information, and it was estimated that only someone like Socrates who had a sense of time and was very sensitive to time would find out.

"I'm going out a little earlier than Yu today."

"I just found out about this matter, in order to prevent Yu from rushing to the library after me, I successfully solved the mystery and entered the third floor, I can only wait in the library, kill him when Yu comes, and then calmly enter the third floor."

"However, if you can pass me the door opening code by knocking on the door in advance, I will be able to be a few hours ahead of him, at that time, I only need to wait for Master Zhou Yi to go out, and then the three of us will come to the third floor together, and I can burn down the library with a fire before going down to the third floor."

"When I can get a few ahead, I don't have to worry that after I leave, I will arrive on the back foot, extinguish the fire that has not yet flourished, and turn to solve the puzzle and enter the third floor."

"If I set the fire a few hours in advance, then as long as Yu stepped into the second floor, under the poisonous smoke, he would definitely die."

"You can help me save the time of opening the door and solving the puzzle by going back."

Su Yun said: "I still don't know what the second layer is all about. ”

Socrates said: "On the wall of the second floor, there will be a random refresh of a dimensional secret door, the location of the secret door needs to be calculated through some specific books in the library, which involves some time and space knowledge and puzzle-solving skills, not something you can learn in a while." ”

"As long as you touch the dimensional secret door on the wall on the second floor with your body, you can enter the hidden space, which is a hidden space, in fact, we enter the two-dimensional world from the three-dimensional world, and we will enter the wall and become a two-dimensional plane existence, and then walk along the wall."

"Just walk around the wall and get back to where we are, and we will reach the hidden stairwell on the second floor, and find the stairwell folded in the wall of the second floor."

Su Yun was stunned when he heard this, he couldn't imagine that this group of logic freaks could actually solve such a complex puzzle on the second floor in such a short time, and they kept saying that this was very simple.

"The situation on the third layer is more complicated."

Socrates pointed to the empty hall in front of him and said, "The space in this room is violently distorted, to be precise, it is a one-way distortion, so there is no problem with the light shining through, but if you walk in the direction of the light, you will hit the wall of air." ”

"In other words, this is a labyrinth where the walls cannot be seen, and this labyrinth is still dynamically changing, and the distortion of this space will change over time, in this case, the more people, the better the effect of exploration, because the walls need to be explored, and the more people there are, the faster the efficiency of groping."

Su Yun said: "How long do you estimate it will take us to wait for this labyrinth?" ”

Socrates touched his chin and said lightly: "Look at luck, this twisted labyrinth is random, if you are lucky, you can walk in a straight line." ”

Su Yun suddenly pointed to Zhou Yi behind Socrates and asked, "Can you let Master Zhou Yi directly calculate how to go?" ”

"If he's not crazy, it's okay, but if he's crazy, he can't, after he is crazy, you can only ask him to do one thing, he can only help you calculate it once, and what he calculates will only be the current feasible pathway."

"However, you must know that the very fact that he is doing divination will also cause causal disturbances to this hall, which will affect the future. In other words, his divination is often only partially valid within the statute of limitations, and it is necessary to repeat his divination halfway through to offset this effect. ”

"If he's not crazy, that's fine, but if he's crazy, it's hard."

"To tell you the truth, I'm actually more willing to cooperate with you who are crazy, so that you can smash all the space walls on this floor with one punch, but it's a pity that I can't deal with your middle two stalks, and I can't communicate with you who are crazy."

Su Yun was silent for a while, and found that he didn't seem to have anything to ask, so in order to save time, they began to explore intensively.

While working, Su Yun couldn't help but ask: "Words, after you heard my empowerment, you can't help but be too calm, if I am true, you are just an illusory existence now." ”

Socrates did not look back, but he probed and said, "I am an illusory being, this is an established fact, and it does not become a fact after you have kept a secret from me. If I don't want to become illusory, then I can knock you out right now and let you spend this in a coma. ”

"But it's not necessary, your secret does have enough weight, but in the end, it doesn't make much difference whether I know the secret or not. On the contrary, if you can relay the results of this exploration to my past self and do a good job of information transmission, then I think this is a better outcome for you and me in the past. ”

Su Yun asked puzzledly: "I understand the rest, you chose a result with a better ending, I don't care if you can remember my secret, but your illusory and realistic you, what is this concept." ”

"The moment I heard about your empowerment, I figured out what the principle of this empowerment was."

Su Yun's eyes suddenly lit up, and he hurriedly asked, "What is the principle?" ”

Socrates said unhurriedly: "It's as if you were writing, you wrote a chapter, and you found that it was not well written, so you deleted the chapter and rewrote it." This process of rewriting is your time node backtracking. You can rewrite a chapter as many times as you like, just as you can rewind it as many times as you like. ”

"Then, when you finish writing the chapter and find that the chapter is perfect enough, you choose to submit, and it's like you've crossed the expiration date of the time node, and once you cross the expiration date of the previous time node, the past will become an established fact, just as you can't change it after you commit."

"And your backtracking validity period is only one, which is like a chapter can only have a specified number of words, and you can't expand the radiation area of a time node indefinitely. In this process, if you die, it means that the chapter has lost the qualification to be submitted, and if you are unconscious and miss the time node, it is equivalent to you falling asleep while writing, and the system will automatically submit the content of the chapter for you. ”

"All in all, your assignment is like adding a draft feature to your life, you can type the draft first, and choose a satisfactory draft as the final draft to finalize and become an established fact."

"In other words, your empowerment does not violate the most basic principle of spatio-temporal science of 'the past cannot be changed', because now you and I are still between the virtual and the real, just a draft!"

"It may or may not be final, depending on your decision or action. In other words, it's more like, a save mechanic! ”

Socrates' analysis was very thorough, and Su Yun was stunned when he heard it.

The strongest wise man is not the strongest wise man, just by hearing his empowerment for a few minutes, he analyzed it so thoroughly, compared to this, Su Yun's understanding of his empowerment is a little blind.

He had always thought that his empowerment was just going back in time and revising the past.

However, the so-called "revision of the past" contradicts the most basic axiom of spatio-temporal science, "the past cannot be changed".

Su Yun also wondered why he could violate the axiom of "the past cannot be changed", but now he understood.

The future has not yet happened, and everything I have experienced is just illusory.

The time node does not negate the past, because as long as Su Yun is in the radiation range of the time node, then everything is just a "draft".

Only after the moment when he crosses the validity period of the time node will the past become an established fact, and the draft will become the final draft.

Next, neither of them said anything more, and groped in the invisible labyrinth with all their might.

Zhou Yi was spinning around in the labyrinth, hitting an invisible space barrier from time to time, and screaming in pain

Su Yun and Socrates had been on the third floor for about a few dozen minutes, and they could only keep wandering around the periphery of the labyrinth, and it was difficult to even get close to the staircase.

The reason for this is that the maze is constantly changing.

Su Yun and Socrates' strategy is to grope along the spatial barrier together, and the two of them each grope for one side of the wall, then, theoretically, this strategy can solve any maze, it is only a matter of time.

But because the labyrinth is constantly changing, walls that were not there may suddenly rise after a while, and roads that were sealed off may suddenly open up after a while, and many times, they will touch back to the same place.

Even if you are a person with strong spatial imagination ability, you can only be at a loss in the face of this unpredictable labyrinth.

"Stop." Socrates suddenly said to Su Yun, "You should go back." ”

Socrates' return naturally refers to Su Yun's backtracking.