With the walls behind him, he finally saw the wilderness.

There were no forests, no farmland, nothing but half-man-tall barren grass.

Out of the city gate is a cement road, the cement road leads to a roadbed higher than the flat ground, that is, the former highway, on the highway you can still see the village, far and near, but now it must be the remains of a village without people.

Not everything is taught in college, so there are many things that Gao Qi doesn't understand, but he will definitely know some common sense.

For example, why not farm near the city, it is because the Second Cataclysmic Alien Beast War lasted for about five years, and the city was the main target of those alien beasts, so every city was a battlefield, and countless alien beasts died around each city.

The death of alien beasts will pollute the land, and the polluted land is not that it cannot grow food, but that the food grown is poisonous, and people will go crazy after eating it, so these polluted lands will naturally not be reused.

In order to fight the alien beasts, humans used all the weapons at their disposal, including nuclear bombs, of course, so outside the city, but a little further away, the main source of pollution was nuclear radiation.

The residual nuclear radiation after the explosion of the nuclear bomb is actually not strong, so the harm caused by nuclear radiation is ranked second to the beast, and it is farther away from the city wall, but the closer to the city, the more unusable the land, which is a problem that every city will face.

Fortunately, the number of alien beasts is limited after all, and the radiation left by the nuclear bomb cannot cover every inch of land, so as long as it is far enough away from the city, there is naturally land that can be cultivated.

In his opinion, even in the ancient era of ignorance, human beings knew that population was the most important resource, so in today's desperate need for population resources, why are those who are in charge of the city not only refuse to accept those wasteland, but also those who were born and raised in the city and have received higher education?

It is okay to drive people out of the city, move some people out of the city, and then let some of the desolate people live around the city, and organize the establishment of gathering areas around the city, and carry out basic management of the people in the gathering areas, and establish a minimum order, then human society will naturally recover.

The question seemed simple, but Gao Qi never got an answer, and in his opinion, the best way to solve the problem was that no one used it at all.

But after three energy explosion incidents, just when Gao Qi had to leave the city today, the moment he left the city gate, he suddenly understood, he understood what Professor Su meant by the meat eater's contempt.

After two cataclysms, human beings invariably regressed to the era of city-states, which is undoubtedly a regression of civilization in Gao Qi's view, and an important reason for this regression of civilization is that everyone thinks that the third cataclysm will definitely come, and humanity will eventually perish, and it will not be too long.

People will be short-sighted after despair, if there is no future at all, then timely pleasure will be the consensus of the vast majority of people, of course not everyone in this world will despair, but it is not one person who controls the city, but a group, when a group reaches a general consensus, then what happens next is difficult to change direction by someone's will.

The controllers of the cities, who have been given the vast majority of their resources, only want the best living conditions and enjoy the moment, not anything to rebuild human civilization.

The city can be self-sufficient, but the number of people it can accommodate is limited after all, and the population is growing rapidly, so when the accommodation of the inner city is close to the limit, it will naturally drive people to the outer city, and those who are not needed in the outer city can only be driven out of the city.

Egoism is the mainstream value of human nature, live your good life behind closed doors, and who cares about those wastelands who don't know at all and are bound to be dangerous.

No matter what the starting point is, Gao Qi believes that this is the beginning of establishing initial contact with the wasteland people and slowly starting to establish order outside the city, and it is a good start.

But with three bursts of energy, this good start may well be over.

Speaking of which, it is necessary to explain the basis of the existence of the city, especially the basis for why a city can continue to operate in a closed manner.

First of all, let's start with the first catastrophe, the first catastrophe is a sudden alien invasion.

A fleet of alien spaceships of an advanced civilization suddenly appeared, three motherships stayed in outer space, and then numerous small ships entered the atmosphere to launch an indiscriminate attack on humans.

The aliens used energy weapons to attack human cities with some kind of microwave, and humans had no ability to fight back, so in just three hours, nearly half of humanity was killed.

Humans were unable to react at all, but humans were able to survive because the alien attack lasted only three hours before three of the aliens' motherships exploded in outer space, and small spaceships in the atmosphere fell to the ground.

When humans angrily opened the first small spaceship that fell to the ground, they found that there were no aliens inside, and those who entered the atmosphere to attack were only part of the alien weapon system.

As for the wreckage of the mothership, it was not until three months later that it gradually began to fall to the ground under the influence of gravity, and for more than a year, the night sky would be illuminated by the fire that burned when the wreckage of the alien mothership entered the atmosphere.

This is the first cataclysm, which made human beings realize their own vulnerability and ignorance, human beings were destroyed in ignorance, and they were saved in ignorance, but they didn't even know what aliens looked like.

And the miraculous destruction of aliens can only be speculated to be the work of a higher-level alien civilization, or the help of God, and there is no other explanation than to draw conclusions in an idealistic way.

The first cataclysm almost completely destroyed mankind, but it also promoted the development of science and technology, and mankind obtained many key technologies, and the most critical one is controlled nuclear fusion.

With the near-infinite energy source of controlled nuclear fusion, humanity can make breakthroughs in many technologies, including, of course, agriculture.

Humans built buildings to grow food, soilless cultivation, combined with the uninterrupted light brought by infinite energy, then factories that can grow crops without land were born, and human beings also had the basis for a city to be completely closed and operated.

Therefore, after experiencing the first cataclysm, human beings have actually entered a period of rapid recovery, population growth, breakthroughs in key technologies, and it is even possible for human beings to enter a higher dimension of civilization.

But only six years later, a strange light appeared on the door, behind which was a strange world, and countless strange creatures of all kinds poured out from behind the glittering door.

Four star gates appeared in four places, and four extremely powerful alien beasts appeared behind the four star gates, and four extremely powerful alien beasts led countless alien beasts to launch attacks against humans.

It also happened inexplicably, and then, two days after it was opened, the four star gates began to disappear one after another, and the four extremely powerful beasts also died one after another, and they died for unknown reasons.

This is the beginning of the second cataclysm, and after the death of four alien beasts capable of destroying humanity, the remnants of the alien beasts continue to attack the humans, and worst of all, these alien beasts can reproduce.

The Beast Wars changed the world, humans gave birth to Aliens, and of course mutants, and humans protected themselves and their cities with walls.

Five years after the Alien Beast War, another stargate opened, and another powerful super alien beast appeared, but this time, the stargate only lasted three seconds before disappearing, and the fifth super alien beast disappeared after it appeared, some people said that this super alien beast died, and some people said that this super alien beast did not die but hid.

This is the second cataclysm, because it is caused by alien beasts, so it is also called the alien beast war, and human beings were born in this war, of course, there are also mutants, and human beings have eliminated the city wall for many years, and then enclosed themselves in the city wall again.

Strictly speaking, the second cataclysm has not ended until now, because the alien beasts still exist, and the important and most deadly reason for the return of humans to the era of the city-state is that humans have lost the sea.

The sea has been completely occupied by alien beasts, the land is shared by humans and alien beasts, and the sky is controlled by humans, but it is obvious that air transport alone cannot maintain the freight demand between several continents, and Lu Yuan is also extremely risky because of the widespread distribution of alien beasts that cannot be completely eliminated, so each city is actually an isolated island, in this case, it is strange that there is no city-state.

The origin of the city-state is roughly like this, and it can now be explained that the origin of the desolate people.

When those city dwellers were also defenders and beasts fought a five-year war, no matter what the reason was, they were indeed absent from the war, so when the war ended, these people who did not contribute anything to the city wanted to enter the city and share the survival resources with the defenders of the city, and the result was conceivable.

The inhabitants of the city looked at the desolate people as defenders of original sin.

And in the eyes of the desolate people, the abundant means of subsistence are the original sin of those in the city,

The city dwellers are organized, have resources, and are the victors of the war of alien beasts, and have an overwhelming advantage over the desolate people, and will inevitably be able to dominate, so although those desolate people dream of entering the city, they don't mind breaking into the city and taking everything from the people in the city, but they can only survive in the wasteland.

Two cataclysms, driven by humanity, humanity has built a new world in the wasteland, a strange but plausible one.

Not everyone can clearly understand the world, most people just live in a muddy life, waiting for the arrival of the third catastrophe in fear, but Gao Qi, he is now one of the few people who can see the essence of this world, and one of the few people who can figure out their own positioning.

Gao Qi positions himself as an abandoned man in the city, he knows how he should survive, but he doesn't know how to change his fate.

But now, after three energy fluctuations in three days, everything is different.

These three energy fluctuations are very likely to be the precursors of the third catastrophe, and it may also be the third catastrophe that has already occurred, but these are not important to the high, the important thing is that the first energy fluctuation is that he is in the center of the outbreak, the second time he is still there, and the two energy fluctuations he has a very strong hallucination, if this can be regarded as a coincidence, it is too coincidental.

But illusions are other people's opinions, no matter how reasonable Han Ruofeng and Huang Fei say, Gao Qi still doesn't believe all the hallucinations he has experienced, the overlapping world, those vortices, and the points of light in the void, everything is so real.

The main thing is not the sight, but the feeling, the feeling of regret and sadness that has appeared for a short time.

Regret and sorrow are only a short moment, but they make Gao Qi unforgettable, make him impossible to forget, and make him firmly believe that it cannot be an illusion.

Since it is not an illusion, then Gao Qi can only insist that he has awakened, but he has not awakened to become an alien.