Zhang Yuan pondered for a while, he frowned and said, "Theoretically, a high-dimensional fragment should not be able to replace the core technology of a fourth-level civilization...... I didn't even see the price of Curvature Technology in the list of transactions. This means that the price is at least 50,000 points! ”

The price of a conventional technology of a third-level civilization is about double digits, for example, the full production method of a certain electronic chip is only 33.2 amoeba points! There are some simple technologies that can be accessed in the single digits.

The price of a regular technology of a fourth-level civilization ranges from three to four figures.

But when it comes to core technology, its price will rise dramatically. In this table, the highest price is a certain subatomic material theory, the price is 50,000!

More than 50,000 things have not been written, it may be planetary fortresses, curvature technology, etc., presumably humans can't afford it.

Zhang Yuan sighed and said, "Although the high-dimensional fragment has a high technological content, for a low-level interstellar civilization, it is completely a heaven-like existence, even if it is a fourth-level civilization, it is not enough to crack the mysteries. ”

"This kind of useless thing, in addition to being used as a collection, is at most used as an electromagnetic cannonball......"

That high-dimensional fragment has been studied for such a long time, and there are no particularly big results, and there are some good people who have specially designed an acceleration weapon for it, just like an electromagnetic cannon.

Anyway, no matter what material the other party is, even a neutron star, as long as it is hit by this thing, it will still be "eaten" partially.

Speaking of this, Zhang Yuan said with a smile: "If the high-dimensional fragments can really be exchanged for curvature navigation technology, then it must be exchanged!" It is the amoeba civilization that knows that we have virtual space technology, but the amoeba civilization is a sixth-level civilization, and they should not tell all the news they know about their subsidiary civilizations. ”

"What's more, this trading market is monitored by the amoeba civilization, and there are other sixth-level civilizations...... The Huantai civilization will not do it in its own market. ”

"If these speculations are true, there is not much risk in trading this high-dimensional fragment, and ten birds in the forest are better than one bird in hand...... Where in the world is there anything foolproof? Compared with the benefits that can be obtained, the risk paid is also worth it. ”

"Curvature technology is our number one priority right now."

"yes, that's exactly what I thought."

In addition to high-dimensional fragments, another major system that human beings can trade with is their own unique science - the historiography of new civilizations.

This is an applied mathematics and a management discipline that human scientists consider to be of great value.

Trafficking in this discipline does not theoretically endanger the security of humanity itself. Just like "Capital" and "The Wealth of Nations", what if others know about it?

Every civilization is different, has different ideologies, and has its own unique history, so according to the historiography of the new civilization, it will also follow its own unique path, and will not duplicate with mankind, nor will it be possible to interfere in the internal affairs of mankind.

Of course, the so-called "high value" is also a conjecture of human beings, and if the other party bids low, they simply don't sell it.

In the end, it is the virtual world technology, which is the core technology of human beings, and although it has high value, it will not be sold.

Not even a word was mentioned in the transaction materials he carried......

That's all the possessions that humans have.

In the midst of such discussions, the speed of the ship gradually increased, and it was expected to take a month to reach the central trading venue.

As time passed, some strange plasma clouds appeared outside the window, like large clouds floating in the universe, and human transport ships were almost navigating through the gaps between the clouds.

Zhang Yuan frowned, feeling that these plasma clouds might be some defensive weapons of war.

The various observation devices of the spacecraft have no way to penetrate this thick layer of plasma clouds, and they don't know what is in the middle of the clouds.

One of the weapons experts said: "In these plasma clouds, there are small amounts of helium hydrogen ions, which are corrosive to a certain extent. If a spaceship flies around it, it will soon be scrapped. So, it should be a means of defense in positional warfare. ”

As the strongest acid in the universe, helium hydronium ions can react with almost any substance, including various carbon nanomaterials and composite ceramics. And the Huantai civilization has also warned the human spacecraft not to fly in the clouds, otherwise they can only be responsible for the accidents caused by themselves.

“…… It can defend against lasers at the same time, interfere with electromagnetic wave communication, and at the same time can block foreign spaceships from flying around. A market must be orderly. ”

"But how did such a large plasma cloud come about? I guess there's a Battlestar in the middle, using a super magnetic field to manipulate these clouds. ”

"Maybe there's a mine or something in there?"

It took nearly another 10 days to pass through these vague clouds through the gaps.

Finally, the clouds and fog in front of him dissipated, and everything in the inner layers of the entire planetary system suddenly became clear again, including more than twenty planetary fortresses and two Julioids that could replenish energy.

Human transport planes have received all kinds of electromagnetic wave information.

Zhang Yuan's mood was slightly excited, and the dullness that passed through the clouds a few days ago was swept away.

But......

The planetary-level battle fortress is really big!

This large transport ship is also considered to be huge, but compared to the planet, it is really like an ant at the foot of an elephant, no, like a grain of gravel in the mountains......

All kinds of huge buildings as huge as the sky are displayed in the eyes of people. There is a big round guy, I don't know if it's a cannon barrel, or something else, the hole of the black hole, and even the next "Kunlun Mountain" can be stuffed!

"I guess it's a planetary engine. It's violent! ”

Planetary fortresses, interstellar civilizations that have survived in the galaxy for more than 100,000 years, usually choose to develop such superships. For example, there is a planetary fortress in the home planet of the Badit civilization that has been captured by humans.

First of all, the interior of the planet needs to be hollowed out in half, and then a huge engine needs to be installed, while at the same time ensuring that the interior of the planet is strong enough. When it sails, it consumes tens of millions of tons of nuclear fuel in one second, which is simply the pinnacle of violent aesthetics below the fourth level of civilization.

On a planet 1 million kilometers away, countless ships and robots are coming and going on the planet, so much so that a huge trench has been created on the surface of the planet.

This is supposed to be a planet that has not yet had time to be fully developed, and now since the entire trading market will be left in three thousand years, if it is still not completed, it may be disposed of at a low price.

Zhang Yuan and the others only glanced at it a few times, it is impossible for human beings to buy anything, and it is the dream of all mankind to have a planetary fortress...... But if you think about it, forget it, without curvature sailing technology, this thing is really not maneuverable.

"Without curvature navigation, the planetary fortress is only able to sail near the cosmic strings. Once it is out of the cosmic chord and loses gravitational acceleration, it is too poor to maneuver by relying on its own planetary engine alone, and it has to consume a lot of fuel to propel itself. ”