In the first half century of the Age of Discovery in the Universe, humanity was trembling and was almost always shrouded in the shadow of destruction.

You should know that taking the initiative to explore other galaxies means that it is very likely to expose your paths to advanced alien civilizations.

What's even more terrifying is that it will also expose the essence of human beings, that is, human beings have mastered the speed of light space technology, and are still a civilization with an adventure spirit. According to the cosmic sociology proposed by Lu Wen and Russell, for other civilizations, civilizations with an adventure spirit are the biggest potential threat.

It is precisely because the human government in the universe has issued extremely strict laws and regulations on cosmic adventures.

For example, any spacecraft that conducts space exploration must be controlled within one tenth of the speed of light before flying out of the Alt Cloud. This means that no matter which direction it is flying, the spacecraft will take at least ten years, and at most twenty years to fly out of the solar system, and then fly at the speed of light. Of course, this means that astronauts have to stay in the spacecraft for ten years, even twenty years (although according to general relativity, the faster the speed of objects, the slower the time becomes, and when the object reaches the speed of light, time completely stops, but humans have discovered that this spacecraft is only suitable for using conventional propulsion methods. For spacecraft that uses space energy to propel, speed has nothing to do with time. It was this discovery that later allowed scientists to associate the theory of gravity field with time). Fortunately, in the 24th century, how to eliminate time in the spacecraft has been

It is not any problem. First of all, the natural lifespan of humans has been extended to more than two hundred years, and it can be extended by replacing cloned organs. By the end of the 24th century, after the secrets of the biological brain were gradually unraveled by scientists, technical means of cloning the brain and copying memories indirectly like cloned brains were introduced, so the lifespan of humans can theoretically reach infinite. Secondly, biological freezing technology has been promoted, allowing astronauts to freeze themselves during long flights and wake up after reaching their destination. If necessary, and even freezing can be carried out in stages so that some necessary work can be handled during the spacecraft. Finally, the values ​​of humans in the universe are completely different from those on Earth. Many humans in the universe regard themselves as part of the universe, so it is not a painful thing to spend their lives on spacecraft.

For example, at that time, the human government in the universe forced every astronaut involved in the expedition to erase the information related to the solar system in memory before setting off. Only after reaching the target galaxy, humans on Earth confirmed through the quantum communication system that there were no high-level civilizations in the target galaxy, or that the explorer did not fall into the hands of the high-level civilization, would send information related to humans to the explorer. Only when the exploration spacecraft returned will the human government in the universe tell the explorer the news about the solar system, that is, the position of the solar system in the universe.

It turns out that these extreme means are the result of great fear of the unknown threat.

It must be admitted that these extreme means are very necessary.

Of course, while encouraging cosmic adventures, the human government of the universe has not forgotten that it is more important that it continues to invest huge amounts of money in the field of science and technology.

Although the speed of human scientific and technological development has slowed down and severe social turmoil has also led to a large number of scientists, those who have remained, or those who survived, are definitely the best scientists among humans. This turmoil of survival of the fittest has caused earth-shaking changes in the human scientific community after 60 years of panic, and a large number of novel scientific and technological means emerge one after another.

For example, some "crazy" among human scientists at that time proposed that the existing technology was enough to develop a more destructive weapon.

This weapon is to make three-dimensional objects two-dimensional.

Of course, it is not to two-dimensional space, but to two-dimensional matter that exists in three-dimensional space.

To put it simply, it is to completely decompose matter into elementary particles, and let these elementary particles naturally disappear, and eventually convert them into space energy.

There is no doubt that this is an absolutely crazy idea.

You should know that in theory, if two-dimensionalization begins, then any matter in the two-dimensional space must fly at the speed of light before this to have a chance to escape, rather than being swallowed up by the two-dimensional process, decomposed into elementary particles, and then become part of the space. There is no doubt that in any slightly rational civilization, the speed of light propulsion will not be used in normal activities, and the speed of light will not be used in the core area of ​​the civilization, because the gravity field fluctuations generated by the speed of light flight are enough to destroy the entire civilization.

In other words, when such sudden attacks occur, no civilization can escape.

Unfortunately, this is indeed a very crazy idea.

With the human technology at that time, although there were no insurmountable theoretical obstacles, it still took a lot of time and a lot of scientific research investment to become practice.

In reality, this is not the craziest idea.

At that time, there was an increasingly crazy idea, that is, by extracting the space energy of the target galaxy, the target galaxy collapsed in an instant, and the material sleep in the galaxy gathered together in an instant, and then converted into space energy, which eventually indirectly evolved to destroy the target galaxy.

The advantage of this attack method is that it does not need to enter the target galaxy and can launch an attack without any vigilance in the alien civilization. More importantly, even if there is a light-speed spacecraft in the target galaxy, it cannot escape, and it will still be sucked into the black hole formed in an instant due to the sudden collapse of space.

Obviously, it is more technically difficult to implement this idea, even exceeding the theoretical basis mastered by humans.

It can be seen that many crazy ideas at that time were aimed at completely destroying the potential threat of alien civilizations, and the methods used were to destroy the galaxy where the alien civilization was located.

This is understandable, because at that time, almost everyone, including most scientists, believed that the chance of human survival under the sudden attack of alien civilizations was very vast, so if humans wanted to survive, the only way was to indirectly destroy alien civilizations.

Any mercy may lead to the destruction of a kind of civilization.

Obviously, this is exactly what Russell put forward.

In a sense, this is a prejudice.

You should know that in the vast universe, there are not many civilizations that have truly reached the level of the universe, or the proportion of the total amount of civilizations is quite small.

In fact, after human civilization enters the cosmic stage, it only needs to develop stably for 500 to 1,000 years, and basically has security guarantees. To put it simply, within 500 to 1,000, most civilizations can expand their footprints to other galaxies. In this way, even if this galaxy is destroyed, civilization will not perish and will reproduce in other galaxies and develop.

In this case, unless two warlike civilizations meet together, the possibility of indirect destruction is not very high.

The problem is that human beings are a warlike civilization.

More importantly, in the second half of the 24th century, human civilization had not yet stepped out of the solar system, and it can be said that it had just entered the cosmic stage.

In fact, only the cosmic civilization at this stage will be so panicked.

Fortunately, this situation changed quickly.

The first alien galaxy that human civilization entered was Proxima Centauri, namely South Gate II. The explorer who first arrived at this galaxy revealed a long-standing mystery, that is, South Gate II does have planets, and there are three. However, the orbits of these three planets are very unstable, and they often transfer between three stars, that is, they are often captured by adjacent stars, so the geology is very active and the planets themselves are extremely unstable.

Obviously, there will be no higher-level civilization in this galaxy.

Of course, to be on the safe side, the expedition spacecraft left a gravity field fluctuation detector on the orbits of the three planets.

In fact, this is one of the important tasks of the adventure spacecraft.

These gravity field fluctuation detectors are driven by fusion nuclear reactors and can work stably for tens of thousands of years. During this period, they continuously monitor the entire galaxy, especially the planets in the galaxy. As long as there are signs of high-level civilization activities, a light-speed spacecraft will appear, an alarm will be issued immediately.

By the end of the 24th century, when the second century of the cosmic era was about to be completed, the footprints of human civilization had already traveled to all galaxies around them within fifty light years.

How many are there?

About a thousand!

Actually, this is not much.

You should know that the solar system is located at the edge of the Milky Way, and the density of the star systems is very low, that is, the relative distance between the star systems is relatively far. In the center of the Milky Way, the density of the star systems is very high. Within the range of fifty light years, the number of star systems is as high as hundreds of thousands.

Among these thousand star systems, only one has civilization, but it is still in the ignorance stage.

Fortunately, there are more than a dozen galaxies that are suitable for human settlement, and the planets in two galaxies have produced relatively suitable natural environments, and one of them has a relatively low life form. When the exploration spacecraft that discovered this planet returned to the solar system, it brought back alien life form specimens and collected mineral specimens from the planet.

It can be said that this is the first severe discovery of mankind when he moves toward the cosmic stage.

In a sense, humans are very lucky.

You should know that if the environment in which humans exist is slightly changed, not only will it not be like this, but it will be destroyed by alien civilizations long ago. For example, if the solar system is in the center of the Milky Way, even in the dense areas of the star system, there will be much more civilizations born around it. The chances of human beings to enter the cosmic civilization stage are very vast, and they will be destroyed by other advanced civilizations. For example, if the solar system is located a little further outward, then within the range of fifty light years, the number of star systems is likely to be only one hundred, or even fewer, so the possibility of discovering planets suitable for human habitation in other star systems will become extremely vast.

The problem is that in such a lucky situation, human bad habits have once again gained the upper hand.

可t!.
Chapter completed!