At this time, Moko's voice attracted everyone's attention.

Xia Lian raised his head, there was an iron staircase about three or four stories high on the right side of this assembly room, and at the top of the staircase was a mechanical door, which had been opened at the moment, and Mo Ke was standing on the handrail next to the door, waving to him.

They took their attention away from the ship for a moment, and walked up the stairs and behind the door.

Behind the door is a place similar to the main control room, an octagonal space surrounded by control panels and virtual projection screens.

"Your Highness, look at this." Moco pointed to one of the projection screens, where an image was playing at the moment.

From a top-down perspective, he saw the towering peaks, the sprawling mountains, the endless green grass and the buildings on that land.

It is a wood-reinforced house, the streets are paved with stones, and the streets are lined with plainly dressed women and children, interspersed with animal carts, which look a bit like a fringe town in Europe in the sixteenth and seventeenth centuries.

"What is this? Video or real-time? Xia Lian asked.

Moko looked at Elsa, who was in charge of technical support in the team.

Aisha stepped forward, stretched out her hand and touched the control screen above, and the screen moved with it, from the sight of the town, skimming the mountains and rivers, and they saw a relatively prosperous city.

The building is beautiful and artistic, and there are some buildings made of high-grade limestone, which shows the cathedral style, and it seems that there should be a god worship in the city.

Seven or eight meters of chimneys stand on the ground, gushing billowing black smoke, steam gushing, this is a civilization that has initially entered the industry, everything looks so gloomy and glorious.

"Monitoring." Xia Lian muttered softly.

"They seem to have left a satellite in the orbit of the Eternal Night Star." Mercury walked up the stairs on one side, and on her iris, there seemed to be a myriad of data streams.

"It looks like it's still working."

Xia Lian raised his head, his dark blue eyes quietly staring at the picture on the screen.

"Those areas were supposed to have a normal day/night cycle, right?"

"Yes." Aisha replied.

"Look at the Eternal Night Zone." Xia Lian said.

Aisha bowed, and then began to manipulate the LCD control screen in front of her, and the picture on the projection screen was moving.

Soon, the screen was occupied by a piece of ice and snow, and the eyes were covered with snow, thousands of years of frozen soil, and the storm mixed with ice and snow swept the earth with a devastating force, and the entire sky was shrouded in a huge "black ball", illuminated only by the arc light scattered from the edge of the black ball.

There was no life in the whole land, a deathly silence.

This is the result of the loss of sunlight, and judging from the data displayed on the satellite, the average surface temperature here is about -40°, but fortunately the planet is not completely unable to illuminate the stars, otherwise the temperature would have been below -68°.

The cold in this area will undoubtedly affect the area with a normal diurnal cycle, and their winters should be unusually cold.

It's not a planet that is suitable for human life, but it is the only one in this galaxy that can survive humans.

"No one?" Xia Lian asked.

"If there are no plants, how can there be people." "This land is supposed to be permafrost, it's not suitable for cultivation at all, and where do humans get food?" ”

"Not necessarily." Moko interjected, "I've heard that genetically modified crops existed thousands of years ago that could be grown in permafrost. ”

People in this era are basically not short of energy, and can directly use energy to synthesize food, with the current genetic modification technology, as long as there is energy, a huge amount of food can be grown on very little land.

It's not that there is no good land, crops like this kind of cultivation in permafrost are completely unnecessary in this era, and naturally they are forgotten.

Xia Lian said at this moment, "On the premise of ensuring genetic diversity, there is a minimum number for a mammalian species to reproduce without degradation.

Anything below this number will lead to a decrease in the genetic diversity of offspring after several generations, and the entire population will be degraded, and there is also a minimum number for civilization experiments.

Let's assume that the population they initially put on this land was 10,000 ....."

"Your Highness, there is data recorded here." Aisha flipped through the computers in the main control room and said, "The total number of people they put in at the beginning was 103,000. ”

Xia Qian shook his head and continued: "If you want to last for more than a thousand years and almost two thousand years, the population growth rate must not be negative, otherwise, their fate will only be extinction.

Although the specific data cannot be calculated due to various factors such as environment and medical care, according to the lowest population growth rate, the number of people who should exist in this land now is in the unit of 100 million.

But looking at the productivity of this paradise, the limit of what can exist should be around tens of millions.

Excluding natural disasters, plagues, and other factors, if they want to survive, they must artificially reduce the population.

War is inevitable. ”

"But they don't look like there's a war." Moko said.

"yes." Xia Lian muttered in a low voice, "There is a problem, where did the rest of the people go?" ”

Everyone present frowned and fell into thought.

"Your Highness." Elsha's voice grabbed everyone's attention, "I think you guys should come and see this." ”

Sharen looked at Aisha's satellite image, which shifted to the junction of the frozen ground and the promised land, where he saw a "Great Wall." ”

As the plains and mountains meander, they act as a barrier separating the two worlds.

And at one point on this section of the Great Wall, a long procession was passing through the Great Wall in the direction of the permafrost, wrapped in heavy robes, holding torches, and their faces numb.

From the top-down perspective of Xia Lian and others, the long flow of people holding torches formed a long dragon of flames, winding and orderly, and it looked very shocking.

Moko was a little puzzled, "What is this doing, why is such a large group of people running to the frozen ground?" ”

"Didn't you notice?" Xia Lian stared at the screen, "Most of the people in this team are old people. ”

Moco took a closer look at the screen, "It seems to be true." ”

Then, he frowned, "But what does it mean to let the old man go to the frozen ground?" ”

"Abandon the old."

Oak, who had been silent, said a noun, there were micro and nano worms, and his limbs were quickly put together by Elsa, and now he has basically recovered.

"Twelve hundred years ago, there was a custom in my community that old people over the age of 60 were required to commit suicide, and the corpses were given to livestock for food, contributing to the community in another way.

This custom is known among you humans as the renunciation of old age, and it was forbidden after the human race brought civilization. ”

"How can this be." Mo Ke is a little unimaginable, "In that case, the whole society will soon be chaotic, everyone has a time to be old, young people do not support the elderly, but the old people will be discarded, then people will lose the motivation to live?" ”

The brows of the rest of the people also furrowed slightly, obviously, this kind of behavior deeply impacted the ethics of the three views of human beings who had entered the interstellar era.

But in fact, ancient humans also did the same thing.

"Productivity is everything." Xia Lian commented, "Human beings are essentially animals, and the instinct of animals is to reproduce.

The basis of all actions is for reproduction and the continuation of the race, when the resources cannot supply a group and thus affect the continuation of the race, the group will find ways to reduce the consumption of resources, and abandoning the elderly is one of the options.

Many animals have similar behaviors of abandoning the elderly, or in other words, supporting the elderly, which is also a sign of the progress of civilization. ”

Mercury also spoke at this moment, "If the results are inferred, if the old people can be abandoned to continue the race, then war can be avoided, so that more young people can survive." ”

"It seems that there are not just old people in this team?" Carl's voice alerted everyone.

Once again, they focused their attention on the long dragon in the picture, and found that in the crowd, in addition to the old man, there were also some young men and women.

"Why are there still young people?" Moco said with a frown.

He looked at Xia Lian, "Your Highness, do you know?" ”

The rest of the people couldn't help but look at Xia Lian, who was very impressed by Xia Lian's all-knowing and all-powerful posture during this time.

I always feel that I can always find the answer from him.

Xia Lian said calmly: "There should be some kind of quantitative index in this civilization, when there are not enough old people, it will be the turn of young people, maybe poor, or the bottom of the society that has no talent and no role for society." ”

"Is there really no one to resist so far?" Aisha couldn't help but say.

Xia Lian did not reply, but continued to look at the picture.

Some of the young men at the end of the group seemed to be trying to escape, but just after running some distance, a middle-aged man in a white robe landed in their escape path from the sky.

His palms lit up with light, and with a heavy wave of his hand at those who fled, flames appeared around him, shooting at those who were about to flee, quickly devouring them and burning them to ashes.....

This hand directly shocked the rest of the people who were about to escape, and returned to the team in a daze.

Xia Lian's eyes flickered, "It seems that this is the reason....."