"Humans just like to be suspicious. The girl stuck her tongue out at them, "I chose to get in the car with the second lieutenant, and the rest of you will watch it yourself!"

After speaking, she trotted to catch up with Gu Yue, grabbed the young man's arm, and asked with a smile, "Angry?"

Gu Yue was taken aback by her, and hurriedly pulled out his arm, looking at her a little inexplicably: "What?"

"Knowingly, I asked!" the girl glanced at the middle-aged man behind her.

"It's normal, there's nothing to be angry about. Gu Yue took a step to the side.

The girl leaned over and grabbed Gu Yue's arm again, with stars in her eyes, "I found that human love is sometimes very cheap, and at every turn fall in love with strangers who didn't know each other a few minutes ago. ”

"Don't confuse affection with love. Gu Yue pulled out his arm again.

"Affection is the first step in cultivating love, and I want to develop it further with you. "The girl is unrelenting.

"I don't want to!"

"You see, we are both of a similar age, and I am the most beautiful of all women. Again, you're the best-looking boy here. We encountered such a strange thing again, two people work together to solve problems, so as to rub the spark of love, this is not a frequent clip in TV dramas!"

"I have a girlfriend, and you're not the type I like. "Gu Yue's straight male cancer has been committed again.

"I don't understand the amorous feelings!" the girl pouted.

At this time, the others also came, four people in all, three men and one woman, aged between twenty-five and forty.

The six of them waited on the side of the road, not speaking for a while.

It didn't take long for a bus to catch their eye, with the word "West Ring" prominently displayed on the front of the bus.

Gu Yue nodded to the other five people, but before he got closer, the bus didn't mean to stop at all.

The driver stares straight ahead, mechanically holding the steering wheel. The people in the car didn't notice them either, and they all looked ahead blankly.

The car flashed past the eyes of the six people, and the rest of the people kept an eye on them. Seeing this, they came over one after another.

"Second Lieutenant, why didn't they stop?" the middle-aged man asked the confusion in everyone's minds.

As early as the car drove by, Gu Yue condensed the flying knife and threw it. The knives passed through the body and fell to the ground.

"This West Loop is not the one we saw before. Gu Yue retracted the pillar condenser.

"Well, I counted it this time, and there were thirteen people standing!" said the girl.

"It's not the ...... before," the middle-aged man was puzzled, "what is the reason for this?"

"Could it be that there are actually two West Ring cars here like our 808 just now?" guessed a young man.

"Two ...... But why are there two cars?" the other person was puzzled, "Both cars are carrying the same people, could it be our clones?"

Everyone was talking, and the girl looked sideways at Gu Yue and found him standing there quietly, like a statue.

She just wanted to go up and push him, but the middle-aged man stopped her, "Don't bother him, the second lieutenant should have thought of something." ”

The girl circled around Gu Yue and found that the latter still did not respond, so she squatted on the side with her cheeks and looked at him with interest.

"Gu Yue!" A childish voice sounded in Gu Yue's mind, and then the scene changed, and the boy appeared in the mirror world.

"Little Gu Yue?" Gu Yue saw the white-haired and golden-eyed child. The second time he appeared here, he was not as surprised as the first.

"You've touched the world line!" the child said straight to the point, his golden eyes staring straight at him.

"World Line?" Gu Yue knew that he didn't have much time now, and this kid called him in to remind him on purpose.

"Your Huazhou's big array, the formation hub, can also be called a sub-formation, in the four major provinces, the formation eye is in the imperial capital courtyard. The predecessors used the big array to forcibly separate the world into the front and back of the door, and after a long time, there will be loopholes in the formation. ”

"The original Fourth Ring Route of the Imperial Capital at that time inadvertently reproduced the trajectory of the formation. Seeing the blankness in Gu Yue's eyes, the child added, "The sub-formations of the Eastern Ring and Qinglong Province coincide, the sub-formations of the Western Ring and the White Tiger Province coincide, and so on." ”

"It means that the original four rings of the imperial capital are a miniature version of the four major provinces sub-formation running routes?"

"Yes, that's understandable. The child nodded, "At that time, the four loop buses departed from their respective starting points at the same time and circled the four ring roads. By various coincidences, the West Ring bus touched the world line and broke into the mezzanine of the two worlds in front of the door and behind the door. This is the truth of what you call a hidden incident. ”

"Don't understand the world line very well?" Gu Yue shook his head very honestly, "The world line you said shouldn't be the one I understand." ”

"The world line you are talking about, is that the one defined by G. Gamow?"

Well, according to his definition, objects are made up of particles. The world line refers to the way that objects pass through in time and space, that is, in the four-dimensional space composed of three-dimensional space and one-dimensional time, the life process of particles is a continuous and winding curve, which is the world line. ”

"Not this one. The child put his hands behind his back, "When I say the world line, I mean the boundary of the world." ”

"The boundary of the world?" Gu Yue was slightly startled, "The boundary between the two worlds in front of the door and behind the door?"

"Not bad. The saying of parallel worlds, you should have heard of it. ”

Gu Yue nodded, "Parallel worlds refer to other worlds that are both similar and different from the original world that are separated from a certain world and exist parallel to the original world. ”

Speaking of this, Gu Yue suddenly understood, "The formation you just said forcibly separates the world into the front and back of the door, what you want to express is that the two worlds in front of the door and behind the door actually belong to parallel worlds?"

"The reaction is okay!" a hint of surprise flashed in the child's golden eyes, "Originally, the two worlds that were parallel to each other neither overlapped nor intersected. ”

"But because these two parallel worlds originally belonged to the same world, there is a possibility of intersection?" Gu Yue scratched his head, and let the parallel lines intersect, it seemed unlikely.

"There is still no intersection, but through some fortuitous events, the two worlds can perceive each other's existence. ”

"Serendipitous events...... Perception ......" Gu vaguely understood something, and the three strange buses appeared in his mind, and a flash of inspiration flashed in his mind, "You mean, the three buses we saw are not in the same world?"

"Clever!" the child gave him a thumbs up.

"The first West Loop bus, the people on the bus could see us and have a conversation. So we're in the same world as them. ”

Gu Yue thought back to the three buses that appeared, "Then the second bus 808 carried thirty-nine people who looked the same as us. They can't see us, so they're actually in a parallel world. ”

Gu Yue said to himself, "Finally, there is the third car, carrying the thirty-nine passengers in the Shenyin incident. They were also in a parallel world, so they didn't stop to say hello to us......"

Gu Yue sat cross-legged on the ground, pondered for a moment, and thought of another question, "What about the number of people, why is there a difference of four people in the two cars in front of and behind them?"

"This is a bit complicated to explain. The child sat beside Gu Yue, stretched out his hand, and a miniature version of the imperial capital model appeared in front of the two.

"Let's move on to the parallel world, remember what I just said, you touched the world line and entered the world mezzanine?"

Gu Yue nodded.

As soon as the child's little hand is raised, the model on the ground will automatically separate a copy. The two identical models were parallel to each other, suspended in front of Gu Yue's eyes.

"The world mezzanine is more complex than the parallel worlds you know. The child pointed to the middle of the two models, "It is in contact with both worlds, and once these two parallel worlds deviate in time and space, it will produce space-time chaos." ”

"Time and space chaos?" Gu Yue was a little shocked, according to the child, the place they were in now should be the mezzanine of this world.

"It's just that there will be multiple coverage of time and space, I'll give you an analogy. ”

The child pushed the upper and lower imperial capital models away, stretched out his hand, and a railway suddenly appeared in front of the two.

"The first is the confusion of time, assuming that your two parallel worlds are in the same space system, that is, they are both on this railway. But the time system is different, so that everything in your two worlds is like two trains speeding on the same railroad. ”

As soon as the child's arm was raised, the railroad became a two-story overpass. "Spatial chaos refers to two parallel worlds in the same time system, but the spatial system is different, just like a car driving on the upper and lower layers of the road at the same time. Got it?"

"I get that. Gu Yue nodded, "The characteristic of parallel worlds is that the two worlds are either parallel in time or parallel in space.

The parallelism of space is reflected in the consistency of time, and the simple point is that the road is layered up and down, or parallel to the left and right.

The parallelism of time is reflected in the consistency of space, that is, the same railway you said, the train trajectory is the same, but there is a sequence in time. ”

"Yes, and this is actually what you just encountered. The child reminded.

When Gu Yue heard this, he finally reacted.

"The two cars in the back are parallel to your space, and the time is inconsistent. You were standing there and you could see them. But in their time, you do not exist.

As for the first West Ring, it happens to be in the same time and space as you, that is, in the same world as you. Aside from the 808 you brought with you at the beginning, it's the only car that can intersect with you.

Of course, this alone is not enough to illustrate the complexity of the world's mezzanine. ”

"What else?" Gu Yue immediately had a very bad thought in his heart.

"Because of the multiple overlays caused by the chaos of time and space, there are many parallel circles in your world. The child looked at Gu Yue, "That is to say, you will see countless West Ring cars and 808 Road when the time comes." ”