There is a limit to the number of warstars that a civilization can withstand, and with such a huge size as a planet, the number of machines may reach tens of billions, requiring a large number of engineers to maintain all aspects.

Conventional civilizations, on the other hand, usually do not explode populations indefinitely, so they do not develop war stars indefinitely.

All in all, after all these years, it's always a good thing that a civilization is finally willing to sell the extra planet. Since the other party's asking price is relatively high, the two sides are still bargaining.

Zhang Yuan exhaled a breath of turbid air in his chest, and flipped through the information on his hand, the mass of this planet was about the size of the moon, and the density was about 8.2 tons per cubic meter, which was greater than iron, which meant that it was completely a large metal lump.

The texture of this type of planet is often quite good, whether it is mechanical structure, mineral composition, or attack resistance, it is better than ordinary planets.

The members of the human expedition are still conducting geological investigations.

Of course, just a primordial planet will definitely not sell at a particularly good price, this kind of primordial planet is simply too much in this starry sky, and no one wants raw materials at all!

Crucially, hemispheric civilizations have been developing here for more than 1,500 years, digging the foundations of planetary engines, inhabited areas, and industrial areas, but they have not yet had time to start building them in earnest.

This is exactly what humans want, and if everything is built, people don't want it anymore. Because this planetary fortress is meant to be the main base of human beings, it always feels very strange and unsafe to use other people's equipment...... So in the end, it will be demolished and rebuilt, and the workload will be increased for no reason.

Now that a foundation has been dug in this way, it is more appropriate.

Because of this, Zhang Yuan's mood was quite good after hearing the news, and he specially bought a pound of "sweet and sour grass" as a fruit for the banquet after work.

This is the latest antioxidant food, obtained from other civilizations, and it is said that long-term consumption can prolong human life.

Well, since this kind of antioxidant food, like all kinds of health products, is too many to count, Zhang Yuan doesn't know if this kind of "life-saving" rumors are true.

Anyway, this thing is harmless to the human body, it's expensive and delicious!

When I returned home, I found my wife Lin Xuanxuan happily cooking dinner, which was quite a rare thing. Both of them are staff members in the embassy, and they will be here for about five years, and their work is quite busy, and today is their third year here......

Zhang Yuan arranged the fruit on the fruit plate, and then smelled the fragrance wafting from the kitchen, and his stomach screamed a few times.

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

Smelling the smell of the dishes, Zhang Yuan couldn't help it, sneaked into the kitchen, stole a chicken wing, and was beaten hard by his wife.

He felt a little embarrassed: "If you dare to hit me, I'm going to kill today!" ”

"What kind of ring, don't get in the way here!"

I heard the doorbell ringing again, and hurried to open the door.

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

Two scientists have also just examined the planetary fortresses provided by hemispheric civilizations.

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

This kind of private banquet is only invited by friends who have made good friends, and everyone has worked with each other for many years, and the atmosphere is quite harmonious.

At six o'clock in the evening, everyone enjoyed the food, chatted, and talked about the various alien civilizations near the Dyson sphere, which was quite interesting.

“…… Some civilizations are very stubborn, and if they insist on one thing, they will definitely stick to it to the end; Some are very strong, and they don't want to suffer any losses in the negotiations, but only want to take advantage. ”

"There are also civilizations, when negotiating, they talk about a lot of things, "what did you eat today", "cultivated a precious alien plant" and so on, giving people a feeling of not knowing what to do. ”

“…… However, what these fourth-level civilizations have in common is that their innate race values are much higher than ours. I think that in the process of development, we may not suffer more than us. ”

Several diplomats shared their views with each other.

"That's not necessarily, 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 themselves in the slow black fog, which is a very remarkable thing. ”

"Being able to become a fourth-level civilization has its own superiority, whether it is in terms of innate race value or social system...... Oh, by the way, there are actually some fourth-level civilizations, which were fostered by other civilizations, and their social systems are actually not very good, but their race values are very high. ”

"All in all, the race value of our human race must be regarded as the lower one......

This racial value refers not only to intelligence, but also to various factors such as ideology, perception, and longevity. If this is calculated, Zhang Yuan also feels that the race value of human beings is indeed not very high......

But it can't be helped, race values are innate, and it's hard to change.

Zhang Yuangan laughed: "Low race value also has the benefit of low race value, there is more room for improvement!" Our social system is very advanced, perhaps more advanced than other civilizations. ”

But if you can find a way to enter the fifth-level civilization, these innate things will become irrelevant......

"And the fourth-level civilization that has been raised?"

"Of course there is, and there are quite a few of them, which is equivalent to a subsidiary civilization, these are all gossip we have heard. Anyway, we can't get to know so many civilizations in depth. ”

"And what about the curvature NPT? Does it work for subordinate civilizations? ”

"I don't know."

For a moment, the crowd fell silent. Judging from the current intelligence, the gap between the four levels of civilization is really huge! There are some subordinate civilizations of civilizations, all of which have climbed to the level of the fourth level.

Zhang Yuan suddenly asked, "Let's talk about that battle star...... How's the negotiation going? Recently, the people's call for a planetary fortress has been getting louder and louder. ”

In fact, the moment the government announced this major project, the attention of the public has always been high. No matter how many times the polls were conducted on the Internet, the support was overwhelming...... Even if the plan is difficult.

Even if it's a Titan-class ship, it's still far from a real planet!

(That's it for today's update!) Ask for a recommended commuter pass! ）