Time flew like an arrow, and time flew like a shuttle.
2153 years!
Ever since humans returned to Earth, it had been a hundred years. The human population had reached over six hundred million. As the wisdom elixir was produced, it was gradually spread to everyone. In the past hundred years, technology had been developing at an explosive rate.
Humans could only modify Earth, but now they could modify the entire solar system on a large scale.
The gigantic intelligent Dyson Sphere had already covered the entire sun. The endless energy it emitted was converted into a huge amount of antimatter by the nearby antimatter factory.
At the same time, Venus and Mars were added to Earth's orbit around the sun. In order to move these two big guys to Earth's orbit smoothly, humans started researching the planetary curvature engine in the year 2070. It took them more than ten years to create two gigantic planetary curvature engines. They also consumed about a trillion tons of antimatter, which was equivalent to two years of accumulation for the Dyson Sphere, which was only one-tenth of the completed Dyson Sphere.
However, it was all worth it. Earth's orbit was the most suitable for human survival. The difficulty of modifying the planet's environment was the lowest, and the time needed was also the shortest. In just a few decades, these two dead planets had become full of life. Other than being slightly smaller in size, they were no different from Earth.
Moreover, during the construction process, countless technical difficulties had been overcome. This had also accumulated valuable experience for humans to build large-scale creations in the future.
Before the Dyson Sphere was built, humans had once optimistically predicted that they would not have to worry about energy for at least a thousand years. However, in reality, the rate at which humans consumed energy was much faster than they had imagined.
As the saying went, the poor had their own ways of living, and the rich had their own ways of living. The poor could not imagine how much the rich could spend every month. The amount of money they could spend every month was more than they could earn in their entire lives. This could also be used to describe humans today. When there was a huge supply of energy, in order to consume the excess energy every day, all sorts of crazy creations began to be built.
For example, the gaseous planet multi-function mining platform, which was known as the "Planet Vacuum Cleaner", was absorbing the gaseous planet material from Jupiter.
For example, the rocky planet multi-function mining platform, which was known as the "Planet Stripper", was slowly peeling off the rock layers on Barnard Galaxy's fourth planet and Sirius Galaxy's fifth planet.
Another example was the planetary fortress that stayed near Earth. It was known as Earth's third "Ultimate Guardian of Mankind" and could fly at fifty times the speed of light.
Each of these behemoths had a diameter of more than 100 kilometers, and the energy they consumed every second of operation was an astronomical figure. This was especially true for the planetary fortress, which was a behemoth with a diameter of 500 kilometers. Although it was much smaller than the moon, its mass was 1.5 times that of the moon.
The alloy layer was a hundred kilometers thick and had a high degree of compression. Even if humans used their full strength, they would not be able to break through it in a short period of time unless they directly hit it with a large amount of antimatter. After it was built, it had only been tested a few times in the surrounding star regions. In the end, due to the waste of energy, it remained near Earth.
It was not that the production of antimatter could not keep up with the consumption of this fortress of confidence, but in recent years, humans had begun to consciously store this strategic resource.
Even the humans of today would not be able to sit back and relax in the face of this vast and boundless starry sky.
Forty years ago, with the new fourth generation of space detection equipment, "Heaven's Eye", being put into service, humans' detection range began to penetrate into the surrounding area of 1,500 light years.
The number of discovered extraterrestrial civilizations had also jumped from three to twelve. The weakest civilizations that could be discovered by space detection equipment were civilizations that could explore the star system in which they were located, and there was no lack of interstellar civilizations.
Humans had their own set of strict levels of danger to various extraterrestrial civilizations.
The lowest level was the harmless level: this type of civilization, even if they used their full strength, would not be able to hurt humans at all. They could only hide in the star system and did not pose the slightest threat to Earth.
This type of civilization occupied the majority of the extraterrestrial civilizations discovered by humans. More than two-thirds of the civilizations were mostly at this level.
The second level was the mild threat level: this type of civilization already had a certain degree of danger. They were already able to explore the stars, and some of the stronger ones had even developed the curvature technology. However, there was a huge gap in the level of technology. If a war were to break out, there would be no suspense in the outcome. For example, the Glassian civilization that was destroyed by humans more than a hundred years ago.
The next level was the medium threat level, which was already a great threat to humans. This type of civilization was basically on the same level as humans, and some of them were even stronger. If a war were to break out, the outcome would be unpredictable.
As for the high threat level and the final level, which was the destructive level, they were already far stronger than humans. When faced with such a civilization, the only thing humans could do was to escape as far as possible before the other party revealed any intention of invading.
Fortunately, humans were not so unlucky. This time, humans had discovered a civilization that was close to the medium threat level.
It was about 1,200 light years away from the solar system, and its influence had spread to the surrounding five star systems. It was like an overlord that looked down on all the surrounding civilizations.
Ever since it was discovered, humans had been paying close attention to this powerful civilization for 40 years. In these 40 years, the number of technological products in the main star system where it was located had been expanding at a rapid rate. Of course, this was not only the case for this civilization, but also for humans.
Even after more than a hundred years, humans could not forget that period of war. Although the old humans who had experienced that period of time had gradually passed away, the new humans who had a longer lifespan were still in the prime of their lives. Most of them were already in leadership positions, and the sense of danger was still present in their hearts.
Ever since the discovery of this civilization, humans had immediately entered a state of war.
That huge planetary fortress was the result of this arms race, and there were even two of them that were still being built.
Other than that, in these 10 years, humans had built more than 50,000 Reactionless Drive warships, and they had built a vast space defense system. The density and intensity of the defense system was completely different from the Glassian at that time.
Compared to the pessimistic atmosphere during the war with the Glassians, humans were not afraid at all.
In these 100 years, humans' research on the quantization of energy had deepened, and the energy quantum transition technology had gradually matured. Humans' energy weapons had already entered the threshold of superluminal speed.
In terms of military significance, it was not an exaggeration to say that this was a transformation.
In the past, humans had no better way to deal with superluminal speed targets, other than increasing the density of the attack and relying on luck.
On one hand, there was no accurate detection system, and the detected spatial fluctuations and specific positions had a huge error. On the other hand, the target's speed was too fast, and the attack distance was too far.
After all, even if the target's detection was accurate, even if the fire control system's quantum computer was able to accurately calculate the target's position and launch the attack.
There were too many variables in the process of approaching the target at the speed of light for a few hours, or even a day or two. A weak spatial fluctuation, the refraction of the thin air in outer space, and the occasional random change of the target's speed could make all of the preparations useless.
However, superluminal energy warp weapons completely changed all of this. They greatly skipped the distance restrictions and interferences that the attacker would have to face during the journey. The moment they were fired, they would be able to warp to the target in an instant.
Coupled with the miniaturized space detection equipment of humans, and the more advanced quantum computer, it allowed humans to increase the hit rate of superluminal speed targets by hundreds of millions of times.
Of course, even if it had increased by hundreds of millions of times, due to the base number being too small, the hit rate of a single attack was still pitifully low.
However, in the war of interstellar civilizations, it had always been hundreds of millions of cannons firing at the same time. If the hit rate was insufficient, they could make up for it with numbers. Even if the hit rate of a single cannon was negligible, under the coverage of the area, hundreds of millions of energy cannons would wash the ground. No matter how fast the target was, it would be useless.
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