After building this double subspace, Clara and Natasha realized that the timeline had been completely separated from the outside world in the second subspace. That is, the time in the second subspace is not the same as the time outside. Although time also passes, it is on two different timelines, so when you leave this subspace, it is equivalent to returning to the original world.

In other words, no matter how long Chu Tianjiang stayed, for him, when he left, he would return to the point in time he entered.

Obviously, no matter how long you delay here, it will not have an impact on what is going on outside.

It's just that Chu Tianjiang immediately thought of a question.

"Obviously, there's no way we're going to get out of here." Clara saw through Chu Tianjiang's thoughts. "According to what you said, more than a thousand years have passed outside, so when we leave here, we will go back to more than a thousand years ago, and it will be another three-dimensional space, or parallel space. Whether you want to accept it or not, we will not be able to enter the world you are in, and we will not be able to leave with you. In the same way, even if you want to follow us to more than a thousand years ago, you can't do it, because you don't belong to that world. ”

Chu Tianjiang let out a sigh, and he knew that he could only meet Clara and Natasha here.

"Of course, we won't leave and will always be here waiting for you."

"Clara ......"

"When Natasha and I decided to wait for you here, we had already figured out this truth and were mentally prepared." Clara smiled faintly and said, "This is also the only way to protect us, because the invaders must know the Dao, even if they kill us, they will change the history of another parallel universe, and it will not affect the world you are in, so it is useless to kill us." ”

"This ......"

"Of course, you can come to us anytime if you want to."

"Clara, you know, I don't want to leave you."

"But you must leave us, for to this world of yours, we are only history. Tianjiang, you must know that time can change everything. ”

Chu Tianjiang gritted his teeth, time can indeed change everything.

"Alright, let's get down to business." Natasha sighed and pulled the topic back.

Chu Tianjiang also sighed, although Clara and Natasha were still alive and had a meeting area with him, they did not belong to the world where he was located.

"What, no doubts?"

Chu Tianjiang let out a long breath and said, "Do you know that Zhang Xiaogang and they established an underground city, why didn't they follow him, but stayed on the ground?" ”

"Do you think I hold a grudge against him because he didn't take care of me during the great geological changes?"

Chu Tianjiang was stunned for a moment, he did have such thoughts.

Clara smiled faintly and said, "If you want to think like that, you are very wrong. In the two hundred years before the great geological change, he and Luo Jinyong and Melanie took good care of me. If it weren't for their help, I'm afraid I would have gone with Anna a long time ago. ”

"Anna ......"

She gave birth to a pair of dragon and phoenix twins, a son and a daughter. She has always lived in the valley homestead, lived for a hundred years, and walked very peacefully. ”

"A hundred?"

Clara nodded and said, "She didn't accept the transformation and refused any life extensions. Her three younger sisters, like her, are all normal people. ”

Chu Tianjiang sighed and asked Clara to continue.

"In fact, it was Zhang Xiaogang who asked Natasha to protect me in the first place. At the time of the great geological change, without Natasha, I would have died long ago. ”

"Then what are you doing ......?"

Clara pressed her hand. "Quite simply, I don't have the same point of view as he does."

"What's the point of view?"

"Although his judgment was correct, the invaders did not aim to destroy humanity, but to conquer and enslave it, but he did not see the essence."

"What essence?"

"The true purpose of the intruder."

"This ......"

"Your nervous system has been energized, so you must have been to the testing lab we built."

Chu Tianjiang nodded and didn't say anything.

"Then you should know that the value of human beings is not in itself, nor in wisdom, but in something that each of us has."

"Genes?"

Clara let out a long sigh and said, "Although there is no evidence to prove this, it must be admitted that our genes are the greatest resource. In three-dimensional space, at least in the micro-universe in which we live, human genes have the highest complexity, and therefore human genes have the highest value. ”

"This ......"

"In fact, for the last few thousand years, it's not the invaders who have stopped us from developing technology, it's that we've stopped it."

"What?"

"After the end of the Epoch of Catastrophe, there was a gap of almost 500 years. Did anything happen during this time? Clara glanced at Chu Tianjiang and said, "At that time, the invaders had already wiped out the underground human civilization and eliminated the main threat. If my judgment is correct, the invaders intend to assist in the reconstruction of human civilization, but in some way they will limit the technological civilization of mankind, presumably in the industrial age. ”

"Why did the intruder do this?"

"Population."

"This ......"

"If the level of human productivity is in the age of agriculture, even if all the world's resources are used, it will be the limit to be able to feed a billion people. Only in the industrial age, especially in the latter part of the industrial age, that is, before the era of catastrophe, will the earth's resources be able to feed at least 200 billion people. If colonization of outer space, such as colonization on Mars, the number of human beings may exceed 300 billion. ”

Chu Tianjiang was surprised, but what Clara said was indeed the truth.

"All in all, the invaders want to increase the human population in order to make more complete use of it."

"So you're working against the invaders?"

Clara nodded and said, "In the beginning, we continued to spread genetic viruses in the atmosphere to stop population growth. It's just that this trick quickly becomes useless, and for the intruder, removing the virus is just a breeze and not challenging at all. ”

"And then?"

"At that time, the intruders started a plan and it was implemented."

"What's the plan?"

"Let people live in an unreal environment."

"This ......"

"To put it simply, it is through some kind of technical means, so that people's consciousness lives in the illusory world, and people themselves live in the cultivation tank, and maintain life through instruments. At that time, the invaders had already begun to implement the project, and the first laboratories were established in the northwestern regions of the Old Continent. ”

"North Wind Country!?"

"What?"

Chu Tianjiang was stunned for a moment and said, "Now there is a country over there, called the North Wind Country. ”

Clara nodded and said, "After getting this news, we made an extremely critical effort to make a targeted modification of everyone through a genetic virus. ”

"What transformation?"

"It is impossible for people to live in a virtual environment, and it is impossible to increase the number of people through cloning, so that people can return to the most primitive state of reproduction."

"This ......"

"To put it simply, it's to stop invaders from using technology to increase the population."

"Success?"

Clara nodded and said, "It is undeniable that the invaders have higher technology, but in some ways, they are not better than us. This is like how modern people can use machine guns to slaughter the inhabitants of primitive tribes, but as long as they enter the jungle alone, modern people's ability to survive may not be better than that of primitive tribes. In any case, the invaders don't know humanity better than we do, and they don't know how to control humanity better than we do. ”

Chu Tianjiang sighed secretly, no wonder the fertility rate of human beings is so low now.

"This struggle lasted for almost 500 years, and what happened in these 500 years not only won us an opportunity, but also completely changed history."

"What do you mean?"

"The intruder is disappointed."

"Disappointed?"

Clara nodded and said, "The invaders originally planned to increase the population on a large scale, but after many attempts, they realized that they couldn't do it. If my judgment is correct, the invaders almost abandoned the earth because of this, and even planned to wipe out humanity altogether and replace it with another intelligent species. It's just that there must have been some kind of accident, and the invaders did not abandon the earth, nor did they completely wipe out humanity, but left humanity to fend for itself. In my judgment, the invaders must be in big trouble and don't have the energy to manage our micro-universe for the time being. In addition, even if the invaders had thought of other methods, such as creating a new intelligent species, it would take a lot of time, millions of years for natural evolution, and tens of thousands of years for even intervention. Obviously, the invaders don't have so much time, and humans are still the only and irreplaceable intelligent species in this micro-universe. ”

"So you've got enough time?"

"It's not quite accurate, but so to speak."

"Not quite accurate?"

"The intruders have not left, they have been spying on us, and as long as they find anomalies, especially if we have made a major breakthrough in the field of space technology, they will come out and intervene."

"The Shadow Empire has fallen."

"I know, we have already guessed it, and it is the work of the invaders. Just like when dealing with underground human civilization, the existence of the Shadow Empire was eradicated overnight. ”

Chu Tianjiang let out a sigh. "So you built this double subspace?"

"Not for us, but for you." Clara looked at Chu Tianjiang and said, "When we made this decision, Natasha and I knew that there was no turning back on this road. Only here is waiting for you to come back, all our hopes are pinned on you, and no one can replace you. ”

"But you ......"

"Tianjiang, time can change everything. For the sake of a grander ideal, someone has to make sacrifices. ”

Chu Tianjiang understood this, but he didn't want Clara and Natasha to make sacrifices.