"And then?"

"Although we were mentally prepared and even accurately predicted the next catastrophe and did our best to avoid or eliminate it, we still failed." Shadow Hour paused and said, "In fact, all our efforts are useless in the face of the invaders. For the sake of the future of humanity, we have no choice, disaster has struck, and all are victims. ”

"What disaster?"

"Mutation."

"You expected it, but didn't take precautions?"

"How to prevent it?"

"Why can't you prevent it?"

The figure shook his head with a wry smile and said, "Although the geological disaster has passed after a month, the war has lasted for two years, and the people in the space city have been exposed to strong solar radiation for at least two years. When the Space City project was launched, the lunar ring had not yet appeared, so the radiation protection standard was set very low. After the collapse of the moon, although some scientists proposed that the solar radiation would be greatly enhanced after being reflected by the lunar ring, and that the radiation protection standards of the space city were too low to isolate the radiation, the Earth Federal Government hoped to expand the scale of the space city as soon as possible and let more people leave the earth, and did not heed the warnings of these scientists at all. ”

"So they're all mutated?"

The figure nodded and said, "We expected this before the truce, and Dr. Melanie also proved that strong radiation can change human genes and mutate people, and only a very few, about 1 in 10,000 people, are born with the ability to resist mutation. Following the doctor's suggestion, we have reached an agreement with the Earth Federation that all those who return to Earth must undergo genetic testing. ”

"Mutants are not allowed to return to Earth?"

The figure nodded again and said, "This is a measure that must be taken, and it has the support of the Earth Federation Government, but we have overlooked an extremely critical issue. ”

"What?"

"Mutations have an incubation period."

Chu Tianjiang was very surprised and looked at the figure in disbelief.

"The incubation period is only six hours at the shortest, and the longest is twenty-two years."

"Virus!?"

The figure sighed and said, "At first, we all thought that the mutation acted directly on the human body, and our suspicions were confirmed by testing samples and obtained specimens. Like normal cells, genetically mutated cells do not have the ability to survive alone, so after the mutant dies, the mutant cells will also die, unless there is direct contact with the mutant, especially contact with body fluids, such as being bitten by the mutant, the mutant is not contagious. But we underestimate the ability of organisms to adapt, and we underestimate the impact of variation. It's not just people who are mutating, it's all other living things, and it's not just space cities, it's also Earth. ”

"What?"

"In comparison, mutation is much slower on Earth than it is in space cities."

"This ......"

"Although many scientists, even Melanie, believe that the invaders used this method to change the natural environment and ecological environment of the earth, so that the earth became the home of the invaders, I hold the opposite view, that is, the real purpose of the invaders is not to colonize the earth."

"What's that?"

"Control humans."

"Control!?"

The figure nodded and said, "There are already enough signs that the invaders have mastered extremely advanced technology, and even if they can't compare with the great civilizations, they far surpass the humans. The most direct proof is that the moon did not directly hit the Earth after the gravitational field disappeared, and the dust formed after the collapse is highly consistent, and we do not know what method the intruders used. In turn, the invaders have such advanced technological means, is it necessary to invade with the colony sphere? The answer is clearly no. With the means available to the invaders, it is possible to directly modify any similar planet, such as Mars, or Titan and Europa, to create an environment suitable for the invaders. In fact, with enough advanced technology, the invaders could even create a similar planet, such as transferring a large asteroid or a large moon into the life belt to become the ninth planet of the Sun. In a sense, invading the earth and transforming it into an environment that suits its existence is the most laborious thing to do. ”

"But it can wipe out humanity."

"If the invaders want to destroy humanity, why not destroy the earth directly? Even if the Earth's biosphere is destroyed, invaders can easily create a new biosphere, and even introduce alien species, turning the Earth into a truly home for invaders. ”

Chu Tianjiang was silent, what "Zhang Xiaogang" said was the truth.

"It is clear that the invaders did not take humanity into account at all, at least not the current humanity, and therefore did not intend to completely exterminate humanity. Whatever the reason, the invaders had no intention of taking over the Earth, nor did they intend to turn it into a colony. ”

"What's that for?"

"Restricting human development so that humanity cannot pose a threat to invaders."

"This ......"

"It's a pity that no one trusts my judgment, even Luo Jinyong and Melanie think I'm thinking cranky, and some even think I'm thinking too benevolent about the invaders."

"I don't think so."

The figure smiled faintly and said: "At that time, Luo Jinyong and Melanie thought that as long as human beings existed, they were constantly consuming the resources in the solar system, and the invaders would definitely occupy the solar system, and it was for the resources in the solar system, so the invaders had no reason to let humans continue to exist." Admittedly, I agree with them that the purpose of the invaders is to seize the resources of the solar system. The point is that there is a clear difference in the definition of 'resource' between humans and invaders, at least in terms of the perception of primary resources at all. To take a very simple example, after mastering the technology of controlled nuclear fusion, we no longer consider oil to be a strategic resource, or even to extract fossil fuels. For example, after we mastered the technique of soilless cultivation, the food was produced in the factory, so we were no longer dependent on the land. With the advent of space cities, we no longer even need land and sea. All of this illustrates the fact that 'resources' have very different definitions for civilizations at different stages. ”

Chu Tianjiang nodded, he also thought of this.

"Obviously, what we are talking about is not a resource at all in the eyes of the invaders. Unfortunately, just as we used to treat hydrogen as a worthless thing and now become the main source of energy for humanity, we don't know what kind of resource the invaders need. ”

"Space."

"Space!?" The figure smiled and said, "Maybe." Of course, with the skills that humans have mastered, it is obviously impossible to use this resource. ”

"Therefore, there is no need for the invaders to exterminate humanity."

The figure nodded and said, "This is also the main reason why the invaders have allowed the humans to survive and not carry out direct attacks on the humans. ”

"And then?"

"Although neither Luo Jinyong nor Melanie agree with me, nor do other scientists, we have to face the harsh reality. As more and more people become genetically mutated and become mutants, humanity is at stake, and no one can become a survivor. ”

"Can't you isolate mutants?"

"How to isolate?"

"This ......"

"In addition to the direct mutation caused by radiation, after the mutant dies, some viruses carrying the mutated gene fragment spread in the atmosphere, causing more people and even animals to be infected. In addition, after death, mutated animals also release viruses carrying mutated gene fragments, which then infect humans. The figure paused slightly, then added, "Unfortunately, by the time we found out about the problem, the virus had already begun to spread, and everyone was infected with the genetic virus, and it could mutate at any time. ”

"And then?"

"I have to admit that we are very lucky, at least Melanie did not mutate."

"This ......"

"Melanie gave everything to save humanity. According to her research, about 1 in 10,000 people are born with the ability to resist genetic mutations. In addition, among the mutants, about 1 in 10,000 will develop in the direction of goodness, that is, through mutation to gain superpowers, and become a super existence similar to the X-soldier. What's more, people who have already mutated will not mutate even if they are infected, such as X-Warriors. Although Melanie is not an X-Soldier, she is a mutant, so she will not be affected. ”

Chu Tianjiang nodded, he had already expected this.

"Fortunately, Melanie developed a genetic virus antibody within half a year, which is a drug used to inhibit mutations to be precise." The figure sighed and added, "The mutation has been contained, but it has not been fundamentally eliminated, and the speed at which antibodies are produced is far from meeting the actual needs. What's more, viruses are mutating, so we have to constantly develop antibodies to deal with new threats. ”

"It's not a long-term solution."

The figure nodded and said, "So we must seek a more thorough solution, and we must do our best to preserve human civilization." ”

Chu Tianjiang looked at the figure, waiting for it to continue.

"The most direct way is to isolate the people who can resist from the rest of the world, let them survive, and then rebuild human civilization." The figure shook his head with a wry smile and said, "Of course, there must be a premise, that is, to eliminate mutants, as well as all genetic viruses. ”

"Elimination!?"

"Viruses are parasitic organisms, and even though they can spread through the atmosphere, they survive very short after leaving their hosts, only a few days. Even if it enters the soil or is parasitic on other microorganisms, it can only survive for a few months, or at most a few years. Therefore, as long as the host is eliminated, the virus will become extinct. ”

"Extermination."

Chu Tianjiang's eyes widened, and he looked at the figure in disbelief.