The number of war stars that a civilization can bear is limited. With such a huge volume of planets, the number of machines may reach tens of billions, which requires a large number of engineers to maintain all aspects.


    Conventional civilizations usually don''t explode the population indefinitely, so they won''t develop war stars indefinitely.


    In a word, it is always a good thing that after all these years, there are finally civilizations willing to sell surplus planets. As the asking price of the other party is relatively high, the two sides are still bargaining.


    Zhang Yuan spits out a mouthful of turbid gas in his chest and reads the data at hand. The mass of the planet is about the size of the moon, and the density is about 8.2 tons cubic meters. This density is even greater than iron, which means that it is completely a large metal pimple.


    The texture of such planets is often quite good. They are better than ordinary planets in terms of mechanical structure, mineral composition and anti Strike ability.


    Human scientists are still conducting geological investigations.


    Of course, a primitive planet alone can''t sell at a particularly good price. There are so many primitive planets in this starry sky, and no one wants raw materials at all!


    The key point is that hemispheric civilization has developed here for more than 1500 years and excavated the foundation work of planetary engines, residential areas and industrial areas, but it has not yet had time to officially start construction.


    This is exactly what humans want. If all things are built, people don''t want it. Because this Planetary Fortress is intended to be the main base of human beings. If other people''s equipment is used, it will always feel very strange and unsafe... So it will eventually be demolished and rebuilt, increasing the workload for no reason.


    Now it is more appropriate to dig a foundation like this.


    Because of this, after hearing the news, Zhang Yuan was in a good mood. After work, he specially bought a kilogram of "sweet and sour grass" as the fruit of the banquet.


    This is the latest antioxidant food from other civilizations. It is said that long-term use can prolong human life.


    Well, because there are too many antioxidant foods like all kinds of health care products, Zhang Yuan doesn''t know whether the rumors of "improving life expectancy" are correct.


    Anyway, this thing is harmless to human body. It''s very expensive and delicious!


    When I got home, I found that my wife, Lin Xuanxuan, was cooking dinner excitedly, which was quite a rare thing. They are both staff members of the embassy. They will stay here for about five years. Their usual work is very busy, and today is their third year here


    Zhang Yuan arranged the fruit on the fruit tray. Then he smelled the smell from the kitchen and cried a few times.


    Lin Xuanxuan''s cooking is undoubtedly excellent, but she is usually too lazy to cook herself. As for today - of course, there are guests to visit!


    Smelling the taste of the dishes, Zhang Yuan couldn''t help it. He slipped into the kitchen, ate a chicken wing, and was severely beaten by his wife.


    He felt a little embarrassed: "if you dare to hit me, I''ll kill you today!"


    "Kill what ring, don''t get in the way here!"


    He heard the doorbell again and hurried to open the door.


    It was a group of dusty diplomats standing at the door. They were all invited to this banquet, a total of seven or eight people.


    Two scientists have just investigated the Planetary Fortress provided by hemispheric civilization.


    "Come in, come in!" Zhang Yuan greeted with a smile.


    This kind of private banquet is only invited to friends who have a good relationship. We have worked with each other for many years and the atmosphere is quite harmonious.


    At six o''clock in the evening, everyone enjoyed delicious food, chatted and talked about various alien civilizations near Dyson ball. It was very interesting.


    "... some civilizations are very stubborn. If they stick to one thing, they will stick to it to the end; Some are very strong. They don''t want to lose at all in the negotiations, just want to take advantage. "


    "There are other civilizations. They talk about everything during the negotiation. Before the business, they will talk a lot about" what did you eat today "," cultivated a precious alien plant "and so on, which gives people a feeling of incomprehension."


    "... however, what these four civilizations have in common is that their inborn race value is much higher than ours. I think, in the process of development, we may not suffer more than us. "


    Several diplomats shared their views with each other.


    "That''s not necessarily true. It''s just your intuitive feeling. You don''t have a deep understanding of these alien civilizations... We got the clues of curvature technology by chance, and these civilizations may have been explored by ourselves in the dark fog. This is a very great thing."


    "Being able to become a fourth level civilization has its own advantages, whether in terms of innate race value or social system... Oh, by the way, in fact, some fourth level civilizations are supported by other civilizations. Their social system is not very good, but their race value is very high."


    "In a word, our race value must be the lower one..."


    This racial value refers not only to intelligence, but also to ideology, perception, life expectancy and other factors. If so, Zhang Yuan also thinks that human race value is really not very high


    But there''s no way. Race value is born. It''s hard to change.


    Zhang Yuan smiled dryly: "low race value also has the advantages of low race value. There is more room for improvement! Our social system is very advanced and may be more advanced than other civilizations. "


    But if we can find a way to enter the five levels of civilization, these innate things will become irrelevant


    "And the four civilizations that have been fostered?"


    "Of course, there are, and there are still a lot of them, which is equivalent to an affiliated civilization. These are the grapevine news we have heard. After all, we can''t understand so many civilizations in depth. "


    "What about the NPT? Is it applicable to subsidiary civilization? "


    "I don''t know."


    For a moment and a half, the people fell into silence. Judging from the current information, the gap between the four civilizations is really huge! There are some subsidiary civilizations that have climbed to the level of level 4.


    Zhang Yuan suddenly asked, "tell me about the war star... How was the negotiation? Recently, the voice of the people for a Planetary Fortress has become higher and higher. "


    In fact, when the government announced this big project, people''s attention has always been very high. No matter how many times the online polls are launched, they are overwhelmingly supported... Even if the plan is difficult.


    Even a Titan class ship is far from a real planet!


    (that''s all for today''s update! Ask for a monthly ticket (recommended ticket!)