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After Ling Chen finished his inspection, it was already two months later, fortunately he had a million doppelgangers, of course, now this number is less than a million, because there are still some trapped in the world of "Fire and Sword", he still has no effort to rescue them, he is still faintly jealous of that world, although it is only a fourth-order world, but there is a god in it.

The so-called God's Being, Ling Chen can be understood as a Consciousness Being, who can control the whole world, and it is obviously a great loss to fight against it, especially in the opponent's home field.

Ling Chen skipped this world for the time being, although the benefits were great, but at present, he could not bear the consequences of a large loss of the clone, because he had not yet figured out the principle of soul splitting, and the upper limit of splitting was a talent brought by a series of events before.

And the world that can be explored now has basically been explored, except for some items that can be brought by routine tasks and the harvest of Civilization Stones, there is nothing new in the rest.

Ling Chen knew that the world of "Fire and Sword" was very strange in his previous life, and now that the people with authority have reached the level of an eighth-level presenter, there is still nothing they can do about it, in his previous life, Ling Chen's memory, but after the catastrophe, he only entered that world to explore, at that time, the expedition team still said that they would pounce.

There are still ten years left before the cataclysm, and at this time, the world of "Fire and Sword" is even more difficult to gnaw.

Therefore, Ling Chen focused on the real world during this time, and briefly called a large number of clones to devote themselves to the defense construction of the real world, and the manpower in the tasks of the civilized world was much less.

Now his main harvest in the civilized world, and like the rest of the authorities, comes from the mission harvest of human expeditions.

This is still because he has a large number of reliable and loyal subordinates who are working for free, and the other authorities can imagine how great their losses will be if they leave the free harvest given by the human expedition.

After inspecting the construction of various branches, Ling Chen inspected the construction of Hope Island and Pagoda Island.

Hope Island is a fixed island, and the construction has already been completed. The surrounding breakwaters can be used as city walls, and in the later stages of the disaster, monsters in the sea are endless.

Pagoda Island, on the other hand, is a large floating island, and the power is only fuel for the time being.

For him, there were not many other problems with the construction of the castle, once it was fully built. It must ensure the relative safety of the occupants therein. The tall city walls can block the invasion of most mutant monsters, and the intelligent replicas arranged inside also carry special civilization props to resist the attacks of those ghosts.

But I want to stick to it for a long time and survive the long catastrophic period of a hundred years. Ling Chen still had at least two fatal problems left unsolved.

One is energy, in his previous life, he knew that many safety points were breached because of a lack of energy. If there is no energy, weapons cannot be refined, and basic cooking and subsistence are all problems. It is not known how many gathering points have had to risk their lives in search of some fuel.

Modern people have become accustomed to the life of industrial civilization, and if there is no electricity, there is no fuel. Such a day, under the threat of death, is certainly bearable. However, the safety point established by Ling Chen, the castle, is destined to have a limited capacity, it is impossible to reserve a large amount of fuel, cooking is a basic need, it may be possible to eat raw for a while, but it must not be like this for a long life.

The second is food. Food has a shelf life, and now Ling Chen can buy a large number of food and reserve food for three or five years, of course, there are also foods with a shelf life of several decades, but it is still the same sentence, the castle has a limited capacity, and the food in reserve. It would be good to be able to feed people for five years at most, and it would be a great luxury to want to farm in peace without a steady stream of new disasters. Especially in the middle of the cataclysm, those goblins can control the ubiquitous wild animals, insects, and humans simply can't reclaim outside of safe spots. In the history of mankind, however, the wild boars, wolves, and other wild beasts have been expelled to clear the wasteland.

But in this kind of catastrophe, more monster mutations and insects that humans can't expel can easily kill humans who go out to farm. Nowadays, the best technology is to grow and cultivate in some greenhouses. The fundamental source of human food is still natural photosynthesis, and synthetic food must only be a small amount, synthesizing organic matter from inorganic matter, which can be done lightly, but it is still not enough to become an industrial technology and solve billions of rations.

The resulting famine and tragedy are innumerable.

The best source of energy is, of course, nuclear fusion, which has been studied for decades, and which was extremely difficult before, but now there is hope.

Human expeditions are exploring a world of science and technology at any cost, and there is nuclear fusion technology in it.

This technological world is a place where great investment and sacrifice are made, and it also vetoes the effect of the resurrection props of the authority, so even though the authority has already appeared in this place, he does not dare to explore it rashly. If you want to get this technology, you need to completely clear the whole world, and there are too many lives to fill in it.

Ling Chen was not willing to waste manpower in vain at the beginning, his 180 million civilization stones, to leave 100 million as his backup, and 80 million, he had already consumed more than half of the civilization props in the purchase of civilization props, and the purchase of those civilization props that could resist spiritual invasion was especially expensive, he was not for his own use, but bought in large quantities, the consumption of thousands was more than 20 million, and a considerable part of it had to be left to prepare for the resurrection of his subordinates.

Many of the authorities were waiting for the human expedition to make a great sacrifice to acquire such technology by the way.

In Ling Chen's memory, the acquisition of this technology was only successful three years before the start of the catastrophe, but at that time, there was only time to build a few fusion power stations, and it did not work in the early stage of the catastrophe.

Now he had to speed up the step, and fusion technology would be very useful for his branch castle, and having it meant endless energy.

The combination of this technology and the technology of food synthesis is the best cooperation for defending the city. One is energy, the other is food, these two solutions can survive the catastrophic period of a hundred years, and retain the fire of civilization at the least cost.

The technology of artificial synthesis of food also exists in this technological world, which is coveted by human beings, so although the sacrifice is heavy, almost equal to the sum of other worlds, the human expedition team still continuously invests manpower.

For Ling Chen, this is also a benefit that he covets, with these two technologies. It means that for the first time, human beings can get the right to live freely from the limitations of natural resources, so that reproduction can truly become a kind of freedom, without always considering the environmental ceiling.

Of course, Ling Chen knew the value of it, and the other authorities also knew it, but when the authority was sacrificed in it and could not be resurrected, no one had ever bothered with the idea of being here. Anyway, the ship of civilization did not force them to enter, so it would naturally instinctively escape the threat of death.

But the human expedition team who don't know the inside story, of course not, this world behind the gate of permanent civilization, as soon as they enter, they will see that the energy inside is almost endless. Since nuclear fusion technology is a technology that human beings have always had a concept and are studying, it is easy to understand and understand the origin of this endless energy source.

As for the synthesis of food, it was only after the emergence of a very small number of farms and breeding pens that it was learned that the humans of this world no longer relied on arable land for food and meat.

Unlike other authorities, they don't know that the end is near, and they can wait for humans to explore. But Ling Chen couldn't wait any longer, especially since there were a large number of human beings who had already had abnormal souls, and the end of the world might not be the same as in the previous life, and they would slowly wait until ten years later to regenerate.

So he had to take the initiative to move forward with the process.

And to take the initiative to advance, he also has to face the problems of other authorities, in this civilized world, resurrection props are ineffective.

This technological world is called "The New Human War". The background of the content is simple, but it bears a striking resemblance to the real world. The world says yes. A part of the human race on the earth has appeared an alien ruin, from which many new technologies have been obtained, from genes, to energy, to food, which are incomparable to the original humans.

They first used genetic technology to modify themselves, but modifying genes is not a simple matter. It needs to make use of one of the equipment in this ruin, and the amount of such equipment that can be transformed each year is a certain amount, no more than 100,000.

After genetically modifying the genes, people will have a leap forward in all aspects. Memory, comprehension, reasoning, these things that are closely related to the human brain, are almost earth-shattering, and the lifespan will also increase dramatically, from an average lifespan of less than 8o years to a thousand years. The modified genes can be inherited steadily, and their offspring will also have these abilities, if not stronger.

This formed the basis for the existence of the new human beings, and the people who obtained this genetic modification began to monopolize the alien ruins and forbade other humans to approach them.

And all kinds of new technologies are also monopolized by them. There are two alliances on the earth, one is the alliance of the old humans, people who have not received genetic modification, loose and unstable, and every high-level in it is not trusted, thinking that it will be co-opted by the new human alliance at any time, after all, the things that are co-opted are too precious to be possessed by the most noble people in human history.

This alliance of old humans is referred to simply as the Blue Alliance because of the blue tone of the seawater used in its logo.

And the New Human Alliance has all kinds of lofty superiority, especially in intelligence and vitality, which has made them treat the old humans the same as monkeys.

For example, if an ordinary person wants to study a book, learn and be able to use it, and pass the guò exam, it takes several months, and his life span is only 80 years.

The genetically modified new human beings, learning a book, to achieve the same effect, only take a few hours of effort, and have a lifespan of 1,000 years, such a gap, everyone can see at a glance that the two life forms will be completely different with the passage of time.

Just as humans look at monkeys and orangutans, monkeys and orangutans are the smarter of animals, but the gap between new humans and old humans is greater than the gap between humans and orangutans.

The difficulty of this world lies in these new humans, their brains are very open, they also have mental abilities, they are smarter than ordinary authorities, and they are also aware of the invasion of other worlds, so they are trying their best to clean them up.

And because of the existence of that alien ruin, the resurrection props of the Ship of Civilization are actually invalid, which shows that the gap between the two sides is not very big, at least this world is not the Boat of Civilization can be completely controlled.

As for those old humans, they don't have any rejection of their compatriots in the other world, anyway, the other party is not here to colonize, and they can't take away their resources and land, but they just come to plunder technology, and those technologies, they also covet them.