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After returning to Earth to rest for about a month, Wang Xiaohu received a notice to go to work, packed his personal belongings very neatly, and went out of the house to the moon factory.

Today's earth, because the vast majority of the population is living in the underground space, so between the underground cities, a very developed, very convenient underground transportation system has been built, fully intelligent control, the load capacity of each train is not large, but the route adjustment is convenient, the transportation efficiency is extremely high, and the passengers can be sent to the designated location with as little time and energy as possible.

In the underground city network, this public transportation system is the most mainstream choice of travel, although there is also a certain amount of suspended flying private cars, but the number is quite rare, is a high-value luxury, Wang Xiaohu of course can not afford to play, fortunately, for him, public transportation travel is convenient enough, does not affect his normal work and life.

Before going out, he sent a booking signal, and walked to the nearest one, less than 500 meters away from the door of the house, a station entrance, Wang Xiaohu just waited quietly for less than ten seconds, and a whizzing by, with a speed of more than 1,000 kilometers per hour, had already appeared in front of Wang Xiaohu's eyes.

This is now the intelligent passenger train, before the trip Wang Xiaohu sent a signal, will their travel time, boarding location, destination and other information to the shipping system a booking, by the super quantum intelligent computer control of the unmanned shipping system, in the shortest possible time, to Wang Xiaohu arranged the most suitable train over, neither delay time, but also not luxury waste, it is really comfortable.

However, for this kind of intelligent scientific and technological enjoyment, Wang Xiaohu has long been accustomed to it and does not care.

boarded the train, Wang Xiaohu randomly found a window seat in the front row and sat down. This is a medium-sized train, the passenger capacity and a minibus is not much different, but the passenger treatment is completely different, each seat, is a delicate and elegant seat, can be used as a bed, can also be erected as a chair to use, the space is spacious and very comfortable, if you need to choose the massage mode, by the built-in program inside the chair to relax the muscles and bones and activate the blood and blood.

There are not many passengers in the car, but there are not too few, about a dozen people, some have pulled up the curtains, lie down and rest themselves, and some are not idle in the car, they are working remotely, their hands are pointing at random in the air in front of them, Wang Xiaohu glanced at it disapprovingly, and knew that it was through the built-in smart chip in the body, retinal projection office, which has long been a habitual thing now, both convenient and thrifty, and privacy is also very good, outsiders will never be able to see through what you are doing through your pointing operation。

Wang Xiaohu has rested enough at home during this time, and he has no sleepiness when sitting on the chair, but there is also a very bad thing about taking public transportation, that is, the passengers on the car are all living people, and it is not easy to contact at will, and it always feels very embarrassing, so he simply pressed the button lightly on the seat, and a transparent barrier was erected around the chair, completely isolating him from the people around him, everywhere looks like a lush landscape pleasant picture.

At this time, unconsciously, the train has already started, and the speed has soared to a speed of seven or eight hundred kilometers per hour, but because of the balance control of the automatic control system inside the train, Wang Xiaohu does not have the slightest feeling of train acceleration, in fact, if he has a glass of water in his hand, when the train accelerates, there will not even be a trace of slightly violent ripples in the water cup, let alone bring any obvious strange feeling.

Such measures, it looks magical, the impact of the acceleration that must exist in the train on the human body is canceled, but in fact, its principle is very simple, the entire carriage of the train is highly controllable, the whole train process, any little acceleration and deceleration operation, the carriage itself will be under the control of the intelligent system auxiliary control, a little bit of overall tilt, with the help of the existence of planetary gravity, balance the impact of acceleration on passengers.

The degree of overall inclination of this internal carriage is usually very slight, even if the individual feels very sensitive, it will not cause too much trouble, and the passenger riding experience is also taken care of to the extreme, because the passengers continue to enter and exit, the train will be suspended from time to time, and the impact of the acceleration and deceleration operation on the comfort of passengers during the period is offset as much as possible, anyway, Wang Xiaohu has been sitting on such a train for more than ten years, and has never felt unaccustomed, just like watching a movie at home, or resting for a while, the time has passed unconsciously, and there is no need to worry about accidentally sitting on the station, affecting their travel efficiency。

The destination of each passenger is directly recorded, when the bus runs, every time it arrives at the station, it will be a targeted reminder, even if it falls asleep, it will not delay things at all, and passengers do not have to worry about the station at any time.

Every time Wang Xiaohu rides the train, he habitually likes to watch the scenery around the train, and for him, this is completely like the feeling of observing the wildlife world.

Although most of the train's route is in the deep underground space, this does not affect the existence of natural life in the slightest.

Although the living space below the earth's surface is essentially to build a sufficient amount of space for a large number of people to survive and reproduce, this does not mean that the underground world is full of houses and dense crowds, in fact, this is a complete misunderstanding.

The underground world actually has a very large and complex underground ecosystem.

Although human beings have carved out a huge amount of space in the underground world, most of these underground spaces are not simply inhabited by humans.

In fact, in this complex underground world, residential areas account for only a small part, larger than residential areas are commercial areas, with a large number of commercial, leisure, and entertainment products for human consumption and recreation, and outside of commercial areas, industrial areas and agricultural areas are more than ten times larger.

Countless automated factories and agricultural factories exist in large numbers in the underground world, and with the help of the massive amount of manpower and material resources gathered in the underground world, various products required by human society are produced.

However, even if all the residential areas, commercial areas, industrial areas, agricultural areas and other human social activity spaces are added together, the total area is not even one-third of the total area of the underground world.

Because of the existence of natural limiting factors in underground space, the space occupied by human society is the most square and the most elite zone, and there are a large number of irregular, corner spaces exist in the underground world. Cultivating a variety of wild animals and plants, it is an underground ecological world that is at least ten times larger than the scale of the surface world.

In the world outside the large-scale fixed frame space, tunnels, sewers, underground rivers, and all kinds of chaotic corners of underground space that ordinary people can't imagine and can't be aware of, the earth government adapts measures to local conditions, according to the different environments themselves, or puts artificial light sources, or maintains the original style, transplants species in a large number of spaces, builds ecology, and even opens up connections between independent and isolated small ecosystems, thus forming a network that extends in all directions. The ubiquitous underground ecological circulation network, in which the situation is complex, the competition is fierce, and the vitality is vigorous, which is better than that of the primeval jungle.

Even according to Wang Xiaohu's personal knowledge, these underground ecosystems, even from the lowest level to the surface layer, as many as dozens of layers of ecological networks are completely connected, from thousands of meters deep underground all the way to the surface, thus forming a unimaginable degree of complexity of the global system ecological network, countless lives in this new framework, with almost infinite space between the system biological network launched an unimaginable survival competition, a variety of different ecosystems are completely organically combined together, its wonderful degree is really indescribable in words。

It can be imagined that in the semi-artificial underground world, with the help of artificial light sources, the whole world is in a state of alternating existence of light and darkness, vitality and death, all life instinctively yearns for the sun-shrouded zone, yearns for vibrant, resource-rich corners, and in order to compete for the most suitable for survival and the most colorful environment, whether it is animals or plants, whether bacteria or fungi, they must do their best for survival and development.

Strong competitors compete for the most precious and abundant living space, and weak survivors open up and spread to the corners of poor resources, and struggle to survive in the most difficult environment.

In the complex underground world, there is often only one step between drought and water sources, and there is often a confrontation between cold and heat, complex environment, fierce competition, and abundant aura resources are reconciled in the middle, to stimulate the vitality and competitiveness of all life forms in the ecosystem to the greatest extent, such a world is not good-looking!

In the underworld, there is a delicate gap between the human world and the natural ecology.

Although the competition of natural ecology is only one step away from human society, the setting of various facilities, anti-beasts, anti-insects, anti-snakes, anti-bacteria, and even the air has a kind of purification and isolation, which maximizes the isolation of human society and those who are extremely competitive and fierce in direct contact with the survival scene, and maintains the quiet and peaceful of human society, but also makes the natural scenery of human society appear slightly dull and tasteless.

Everywhere there are neat landscape trees and patchwork plantations, which is safe and harmonious, but compared to the richness of the real underground ecology, it seems too boring.

For Wang Xiaohu, the route of the train is one of the few times in ordinary life that it can directly hit the survival system in the wild.

The underground transportation network extending in all directions, running through all corners of the underground world, here because of the protection of the train body itself, so even if it is dangerous, the underground ecological world with extremely cruel competition is not intentionally isolated, and even in order to maintain the bloody and wild nature of human society, here is intentionally provided with some of the most direct viewing platforms for passengers, and a large number of well-designed, the most resource-rich survival competition points in the underground world are set on both sides of the traffic line.

For the animals and plants that compete fiercely in the underground ecology, the train in the vacuum tube is undoubtedly a rainbow in the sky for them, and the projection on the water surface, although it often appears in shock, but it has no real and practical impact on their lives, so you can often watch the most primitive life and style of the animals here.

It's the biggest intersection between the human world and the world of biological competition, and it's one of the best windows into the underground ecology, and it's more wild, natural, and surprising than those elaborate ecological nature shows.

Through the ecological projection along the train, Wang Xiaohu can easily glimpse a large number of animals gathered near the traffic line, ponds, light sources, food, these things attract a large number of wild animals and plants, inadvertently what wild boars, jackals, even lions and elephants and other animals, Wang Xiaohu has seen groups after groups, hunting, eating meat, tragic deaths, wailing, everything.

Occasionally, Wang Xiaohu even saw a family of white tigers! Three tigers of all sizes gathered together, a truly rare spectacle, made him feel lucky for a while.

After more than 200 years of ecological restoration, the capacity of the ecosystem carried by the earth's life is not only dozens of times that of the year, and some rare and endangered biological populations have now flourished again.

However, for the surface creatures, those passages that suddenly open up on the surface are like monster abysses, and from time to time some ferocious and abnormal animals come out, bullying the native species so miserably. (To be continued.) )