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At least in the last tens of millions of years, because the three cosmic-level civilizations have strengthened the monitoring and management of super interstellar civilizations, any super interstellar civilization that exceeds the development ceiling set by the three cosmic-level civilizations will attract the attention and detailed investigation of the cosmic-level civilization at the first time.

Those super interstellar civilizations that have the potential and tendency to rise up and be promoted to cosmic-level civilizations have already been swept away by the cosmic-level civilizations before they can accumulate enough strength, and they are not even qualified to continue to survive, let alone the extravagant hope of growing to the level of cosmic-level civilizations.

On the contrary, among those ordinary interstellar civilizations, there are always some special beings who can make some extraordinary achievements.

In the past tens of millions of years, although no interstellar civilization has been lucky enough to break through to the level of cosmic-level civilization, and continue to survive under the strangulation of the three cosmic-level civilizations, and become the existence of a new cosmic-level civilization, but those ordinary interstellar civilizations that have accumulated strength and surpassed the super interstellar civilization in terms of overall strength can be said to abound, and the three cosmic civilizations have long discovered more than one civilization that secretly conducts various scientific research work and tries to develop its own scientific and technological strength.

However, although these interstellar civilizations are also extraordinary, and they also have various means to hide their own strength, many of these civilizations even hide the eyes and ears of the super interstellar civilizations in various colonial galaxies, so that civilizations that do not understand them often do not even notice to what extent their strength has been accumulated.

However, in order to suppress the interstellar civilization in history, and in order to cut off the latecomers from developing to the level of cosmic civilization as much as possible, the three major cosmic civilizations have long had incomparable experience in discovering the clues of some civilizations.

After all, after civilization has developed to a certain level, in order to improve the level of science and technology and develop its own power, there will always be more and more things that will be developed into new uses.

In the universe, some things that are very rare and precious, but the threshold for use is very high, although it cannot be said that they are commonplace, but if you really say it, there are many types.

Heavy water, for example, is only a tiny component of ordinary natural water sources, and the difference between it and ordinary water is only a slight difference in the hydrogen atoms that make up water molecules.

Before the civilization level reaches a certain level, those civilization countries with relatively primitive civilization levels will not be able to discover this kind of thing at all, let alone understand what is special about this kind of thing, and they will not think of producing heavy water in large quantities and using heavy water.

However, for some civilizations that have reached the technological level, because of some particularities of heavy water in physical and chemical properties, heavy water has some important uses in many aspects and fields, not only can be used but also the consumption is still rising, and it can and must be applied in many places.

For the three major cosmic civilizations, based on years of experience in suppressing interstellar civilizations, it is completely traceable which civilization levels can discover and utilize certain rare materials. In addition, the trading channels of many precious materials in the various colonial galaxies of this galaxy group are often in the hands of the three major cosmic civilizations, either overtly or covertly, so this provides great convenience for the three cosmic civilizations to discover the abnormal signs of certain civilizations.

It may be that some civilizations will have some differences in technology and development strategies, which will lead to some civilizations being a little different in terms of the demand for some materials, but after reaching a certain level of civilization, the needs of many basic and rare materials generally have a certain context to follow.

The three major cosmic civilizations all have a large amount of in-depth information on various resources, and they all monitor the transaction data of many important materials on the market at any time, so that once there are some changes in the demand, supply, and mining of certain important materials, this will often attract the attention of the three major cosmic civilizations.

Once a certain civilization is detected to have abnormal consumption or transaction records on a variety of special materials, it will often attract the attention of the three major cosmic civilizations for the first time, and many interstellar civilizations that are extremely hidden are often discovered by the three cosmic-level civilizations with some seemingly small clues, and then completely eradicated.

If it weren't for such a special means and a sensitive sense of smell, I wouldn't know how many civilizations have been hidden in the large number of colonized star fields of the three cosmic-level civilizations over the years.

But it's a pity that no matter how effective the means are, they are not a panacea, the three cosmic-level civilizations have used the monitoring of these special resources to know how many potentially powerful interstellar civilizations have been eliminated in countless years, such means are easy to use once, twice, ten times, and eight times, but the number of times they are used is too much, after all, there is a day when the stuffing is exposed.

In the process of being annihilated by the three major cosmic civilizations, what they are most puzzled about is how the three major cosmic civilizations found them and discovered their existence?

These interstellar civilizations have all kinds of speculations, are they being targeted by super interstellar civilizations? Is there some loophole in the hiding of their own civilization, or some secrets have been leaked within their own civilization, or maybe the three major cosmic civilizations have discovered some of their horses and feet through some special means, so that one day the fleets of the three major cosmic civilizations will suddenly appear in the territory of their civilizations and completely uproot their entire civilizations?

Such a question is naturally not really answered by any civilization at the beginning, but as one potentially powerful interstellar civilization after another is unearthed and completely wiped out by the three major cosmic civilizations, all kinds of inside information will inevitably be spread, and many remnants of interstellar civilizations will do everything possible to find the root cause of the defeat of their own civilization.

A large number of remnants of interstellar civilizations summarized each other's intelligence and sent out internal and external factors one by one, and finally these civilizations pointed the key to the direction of some special materials, and more and more remnants of interstellar civilizations attributed the reason for the defeat of their own civilization to their own lack of care, and were caught by the three major cosmic civilizations in the supply and demand of certain special materials!

The relevant information of these interstellar civilizations is naturally the focus of those potentially powerful interstellar civilizations, after all, no matter which interstellar civilization also instinctively wants to develop, but once it develops, it is extremely dangerous, and it is necessary to avoid the butcher's knife of the three cosmic civilizations as much as possible.

It can be said that with the passage of time and the spread of news, those interstellar civilizations with some strength have a lot of taboos in their development, and they are doing everything possible to circumvent the monitoring of some special materials by the three major cosmic civilizations, and even many interstellar civilizations have mastered the accurate list of materials, knowing which materials cannot be easily touched, let alone purchased in large quantities and for a long time, otherwise it is easy to be on the blacklist of the three cosmic civilizations.

Although the three major cosmic civilizations are still paying attention to the various dynamics of many special materials, in fact, in the past few million years, the number of interstellar civilizations that the three cosmic civilizations have really grasped and developed to a considerable height is already very small, and it is simply incomparable compared to before!

Of course, this is not to say that the number of interstellar civilizations that have developed to a level worthy of the vigilance of the three cosmic-level civilizations has really decreased so much, in fact, this is obviously impossible.

In the course of tens of millions of years of history, no matter what era or what location characteristics of the interstellar civilizations, they have all grown to a considerable level, making the three major cosmic-level civilizations feel that they must be eradicated! Although the number of such civilizations is not large, there is always a certain scale in a certain period of time.

It can be said that the three major cosmic civilizations have counted the corresponding data, and have drawn a series of lessons, an obvious fact is that the number of interstellar civilizations that they have caught to a certain level within a certain period of time is less, which is often not really less, but the means of the three major cosmic civilizations to find the corresponding civilizations have been cracked and are no longer applicable.

And if the situation of a similar situation of being difficult to detect a potentially powerful interstellar civilization for a long time really lasts for a certain period of time, then the internal order of some colonial galaxies of the three major cosmic civilizations will not only have various turbulences, but more importantly, some civilizations that can really step into the threshold of cosmic-level civilization are often bred at such a time!

The longer the potential for a powerful interstellar civilization cannot be discovered, this often means that the three major cosmic civilizations will encounter more troublesome consequences at this time! Such a lesson can be said to be tried and tested repeatedly.

In the past few million years, the three major cosmic civilizations have discovered very few potentially powerful interstellar civilizations, and this situation can be said to be very dangerous, if it is not now that it has encountered such a fierce and powerful opponent as the ancient civilization, then for the sake of security, the three major cosmic civilizations may not be long before they take the initiative to disturb the situation in each colonial galaxy, and carry out a large-scale investigation and cleaning of each colonial galaxy, so as to eliminate potential security risks as much as possible.

Even if the current situation does not allow it, under the pressure of war of the ancient civilizations, the three major cosmic civilizations have no time or energy to complete such a potential safety hazard investigation, but normally speaking, it is impossible for the three major cosmic civilizations to integrate any interstellar civilizations, transfer any low-end industries to the outside world, and let countless interstellar civilizations do OEM for them.

Because in such a process, the supply of materials for various colonial systems is bound to become chaotic and disorderly, and the supply of various originally very sensitive materials will quickly tend to be disorderly, and it is impossible for the three major cosmic civilizations to monitor the development of various interstellar civilizations.

More importantly, although the three major cosmic civilizations have transferred different technologies and equipment to different interstellar civilizations, those interstellar civilizations will not all be so honest, and they all have to dance with the baton of the three cosmic civilizations.

The deep understanding of these interstellar civilizations makes it clear to the three major cosmic civilizations that as the low-end technologies and industries of these three cosmic civilizations are transferred to various interstellar civilizations, it is simply impossible for these technologies to be completely kept secret and restricted.

You must know that even some low-end industries of cosmic-level civilizations often contain extremely high technical levels and a large amount of advanced knowledge.

And these technologies and knowledge are very useful for those interstellar civilizations in many aspects, and have great value and significance.

Those interstellar civilizations that have received the technology and industry transferred by the three major cosmic civilizations, once they absorb these technologies and knowledge, in addition to continuing to seek further technology and knowledge transfer from the three cosmic civilizations, they will definitely not hesitate to share knowledge and technology with each other!

Anyway, for these interstellar civilizations, the low-end technology of the cosmic-level civilization they possess is not a unique rare treasure, and once they have the opportunity, they will inevitably learn from each other!

Originally, the three cosmic-level civilizations did everything possible to prevent those interstellar civilizations, and the slightest bit of science and technology was not leaked to the outside world, even if those interstellar civilizations just relied on the acquisition of all kinds of broken goods, all kinds of waste equipment and the like from the three major cosmic civilizations, with their perseverance and copycat learning methods, they have grown one by one to the point where the three cosmic civilizations feel threatened, not to mention that the three major cosmic civilizations are now taking the initiative to transfer various industries to the outside world.

It can be said that it is easy for these three major cosmic civilizations to release these technologies now, but if they want to take them back in the future, it will be impossible at all!

In the future, the average technological level of various interstellar civilizations will increase, and a large number of special materials that originally had a special calibration role will be used, which is a visible trend. In the future, if the three major cosmic civilizations want to find a potentially powerful interstellar civilization with a threat from this large number of colonized galaxies, the difficulty increase will definitely not be half a point.

Even if the three major cosmic civilizations survive this crisis caused by the ancient civilizations in the future, it will be eventful for this galaxy group in the future, and I don't know how many interstellar civilizations have found their way to the cosmic civilization level by taking advantage of the current opportunity!

Such a large-scale transfer of science and technology to the outside world can really be said to be digging their own foundations and digging their own graves, and the three major cosmic civilizations are simply painting a symbol of the end of their own civilization hegemony, waiting for a new cosmic civilization to challenge their inherent order in the future.