Of course, the Protoss civilization is an ancient fifth-level civilization in the galaxy, and Zhu Lei will never speculate about what such a civilization will look like before they come into contact, but after arriving at the Protoss civilization, Zhu Lei and they are also very curious about this civilization, after all, this is the first time that the Ming Empire has come into contact with the real fifth-level scientific and technological civilization in the galaxy other than the Ming Empire.

This is a highly developed cosmic civilization, take the cosmic starport of this civilization as an example, it is not comparable to ordinary civilizations, you must know that the cosmic starport of this civilization spans several star systems, and the range has reached a distance of nearly five light years, and the largest starport of the Ming Empire is only on the periphery of a galaxy, so you can imagine how huge the gap between the Ming Empire and the Protoss civilization is.

And within this distance of five light years, except for a few stars and some living planets, all celestial bodies are artificial structures, and although the largest of them is not as huge as those artificial stars in the black market, the size of these stars is actually much larger than that of the moon, the moon of the human earth.

And artificial stars like this are everywhere in the entire range of five light years, except for various artificial buildings, there are no natural celestial bodies within the entire distance of five light years, not even a piece of asteroid fragments, you can imagine how much time it takes to build a cosmic starport of such a large place, even with the technology of a fifth-level civilization, it will take hundreds of thousands of minutes to establish,

And according to the information obtained from the Kaaika civilization, there is not more than one such cosmic starport for each fifth-level civilization, such as the Protoss civilization, they have five or six such starports, and the size of each other starport is much larger than this starport, because this starport is a new starport built by the Protoss civilization in the past 100,000 years.

And the Protoss civilization is not a very powerful civilization in the fifth-level civilization of the galaxy, so there are more civilizations that exceed the starport of the Protoss civilization, but anyway, the Ming Empire has not even done one such starport now, although the scientific and technological strength of the Daming Empire is far beyond the Protoss civilization at this moment, after all, the current Daming Empire has begun to study space technology, and the Protoss civilization is still a fifth-level intermediate civilization and even a fifth-level high-level civilization has not even reached it.

Therefore, even if the current technology of the Ming Empire has far surpassed the Protoss civilization, it is far inferior to the Protoss civilization in terms of real comprehensive strength, but Zhu Lei and they are not discouraged, you must know how long it has taken for the Ming Empire civilization to be promoted to the fifth-level civilization, only less than a thousand years, and in such a short period of time, the civilization level of the Ming Empire has been promoted from the fifth-level low level to the fifth-level top, and even now it is facing the sixth-level civilization Yaoyao, maybe one day, the Ming Empire will become a sixth-level civilization.

What's more, the Ming Empire now has the absolute strength to establish a much larger cosmic star port than this, but because the Ming Empire has become a fifth-level civilization for a short time, there are not many civilizations in the galaxy that know the existence of the Ming Empire, so even if the Ming Empire spends time and energy to build such a huge star port all at once, it will not be of much use to the Ming Empire, after all, there are not enough merchants coming.

According to Zhu Lei's understanding, the Protoss civilization has tens of thousands of subsidiary civilizations, and these tens of thousands of civilizations basically include civilizations of different forms of civilization in the universe, and even cultivation civilizations, of course, the highest level of these civilizations is only the fourth-level top, and there will be no higher-level subsidiary civilizations after that.

But this is also normal, after all, the Protoss civilization itself is only a fifth-level intermediate civilization, if there is really a fifth-level civilization as a subsidiary civilization, then the position of the boss may be handed over, so the general civilization will not accept a civilization with the same level as its own civilization as a subsidiary civilization.

Even if there is a subordinate civilization that wants to advance to the same level of civilization as the main civilization, it is not allowed, and even if there is a subordinate civilization that must be promoted, then unless the main civilization knows, otherwise what awaits them will definitely perish.

After all, no matter what kind of main civilization it is, no matter how good it is for the subordinate civilization under its own civilization, it is essentially exploiting the subordinate civilization under its umbrella. Contributing to the main civilization, how can it be possible to allow its subordinate civilizations to travel to the existence of uncontrollable civilizations, and even to threaten the status of its own main civilizations.

After all, the universe is dark and cruel, and the greatest law of cosmic civilization is that even if the weak eat the strong, and the main civilization is not the Holy Mother, this is absolutely not allowed, even if there is this idea.

Therefore, each civilization has issued a series of laws and regulations to control its subordinate civilizations, and some civilizations have even implanted various controllers in the heads of each subordinate civilization race to achieve the purpose of controlling the subordinate civilizations.

And the Protoss is no exception, the Protoss is naturally very harsh on their subordinate civilizations, for example, the arrival of the visiting fleet of the Ming Empire, in order to prevent the Ming Empire from affecting its own subsidiary civilizations, the Protoss will not allow the people of these affiliated civilizations to contact the envoys of the Ming Empire, and even all transactions and various trade exchanges must be completed by the main civilization's own merchants.

And it can be seen from the starport that the status of these subsidiary civilizations is actually very high, and even not much stronger than slaves, most of the physical activities in the port are completed by these subsidiary civilizations, and there are obvious differences in clothing and behavior.

People of all races of subordinate civilizations basically walk with their heads bowed with a bitter face, and once they meet the people of the main civilization, they must bow their heads, and all the texts of the main civilization are nostrils facing the sky, and their self-confidence is very strong, and they can even beat and scold the races of these subordinate civilizations casually, and even if they accidentally kill a person of a subsidiary civilization, it is not a big deal, at most it is just a few dollars, even if they do not lose, these subordinate civilizations have no way to do it, they can only swallow their anger.

But this is all good, after all, at least these are personal matters, and even once some civilizations make mistakes, then everyone in this civilization will be implicated, and even the main civilization will sell the entire subsidiary civilization as slaves without the knowledge of this subsidiary civilization, which has not happened in many of the galaxy.