The moon base I built was exposed

Chapter 23 The Mysterious Merchant
"Technology points that simply rely on time to increase are not enough..."

After thinking about it, Zhao Yu decided to determine the title earlier, so that he could get more technology points.

Option 2 is not considered by him.

Option 1 is a bit extreme after all, he can't directly destroy his original planet.

"Just choose 3!"

[The selection is completed, and the title is obtained: Mysterious Merchant]

[Mysterious Merchant: Trade with alien civilizations to get additional technology point rewards. (The technology points obtained do not exceed the upper limit of the technology points when the traded item was manufactured.)]

[Note: The transaction content is limited to products, and does not include scientific theories and related technical principles. 】

After careful study, Zhao Yu finally understood the situation of the mysterious businessman returning the technology points.

For example, using Xiaotian as a trade item, the cost of building Xiaotian was only 20 technology points.

This means that no matter how many Xiaotian he trades, the maximum technology points he can get is only 20 points.

Other than that, he can only trade what has already been made.

Basic sciences such as mathematics and physics with a technological level of 1.99, or technologies in secondary application fields cannot be used as trading content.

This shows that he can only sell products, not technology, nor theory.

If other civilizations want to learn, they can only study on their own based on their products. As for how long to study and whether they can be researched, it all depends on the other party's ability.

"The system seems to be afraid that I will sell the technology to the earth..."

[Hint: The previous host unconditionally supported the original civilization, and eventually died. 】

"I see!"

Zhao Yu suddenly realized that the system was afraid that he would die too quickly, so it imposed many restrictions.

This also means that his previous thinking was correct, and he must not reveal his true identity when interacting with the earth.

"I used to be a person on Earth. This is my hole card. Once people see it, it means that I will lose..."

What does it mean to lose, Zhao Yu knows without thinking, how he became the new host, the answer is all in it.

Thinking of this, Zhao Yu couldn't help but feel lucky. Fortunately, he has been cautious enough all these years.

Even the housekeeper Uncle Da, including the nine highly intelligent bionics, didn't know his details.

It's not that he doesn't trust them, it's just that he knows that there are too many ways to get out the secrets in other people's hearts.

What's more, his level 1 base car has a population limit of 10 absolute loyalty, all of which are tied to the butler and nine bionics.

If the system hadn't mentioned this absolutely loyal function, he wouldn't have built artificial intelligence.

Because when facing Uncle Da and those nine people, Zhao Yu would often forget that they were bionics, and would only treat them as real people.

"However, before the transaction, I still need to think about my origins. Although there is no need to tell the people on Earth, I need to prepare in advance..."

Zhao Yu knew very well that once his base was found out, it would be found to be an isolated island.

No civilization, no large population, no bases of any kind developed out of thin air.

"The background of the underground people on the moon can be ruled out..."

"The most reliable background is to realize the identity of aliens..."

Zhao Yu rubbed his chin, thinking and perfecting.

"I... no, we came from a distant planet, because of an accident, we fell on the moon..."

"The spaceship is damaged, and it can fly a short distance, but it can't travel through millions of light years to return home, no, you can't say that..."

"Since we are an advanced civilization, we don't know whether it is feasible for the spacecraft to reach the speed of light. Perhaps, the real advanced civilization relies on other technologies, such as space jumps in science fiction, or wormholes..."

"If this is the case, it is not advisable for the spaceship to blindly pursue speed. It is equivalent to a beggar imagining that the emperor begs for food with a golden rice bowl. After a long time, it will be easily dismantled!"

According to the steward's assessment, the average technological level of the earth is only 0.75.

The seven basic technologies in Zhao Yu's hand have reached 1.99, which is already very high compared to the earth.

But he himself doesn't understand these things, so it's better to say less in the professional field.

"The speed of light spaceship can't be touched, it's just a technical failure, and I can't go back for the time being, let them guess the rest..."

"The moon base was established to repair the spacecraft, just this sentence, enough!"

Zhao Yu thought a lot, but finally felt that it is better to say as little as possible to increase the room for maneuver.

It is better to let the other party think about various possibilities than for him to decide on one direction and be overthrown in the end. It is more reliable to suspect his identity.

After the background was finalized, Zhao Yu began to think about the content of the transaction.

"I don't give it to the military field first, and I can't give it to the simulation of the atmospheric environment in terms of life. If I give it, they might want to be my neighbor..."

After thinking about it carefully, there are not many high-tech products in the field of life. With that technology point, he focuses on the military.

The existing living facilities in the base were all built by Zhao Yu because he felt bored and panicked, and couldn't bear it anymore. Moreover, he picked cheap goods, and the technological content was not much higher than that of the earth.

Inadvertently glanced at the watch, Zhao Yu's eyes lit up.

"You can trade this, project a touch watch!"

This is the technology that Zhao Yu discovered when he wanted to get a mobile phone after the mobile phone ran out of power when he first time traveled.

The watch integrates all the functions of the mobile phone, and most importantly, it can be projected to the air touch control.

"System, if I want to trade this watch, how many technology points can I get back?"

[850 Technology Points]

"850?"

Zhao Yu was taken aback for a moment. He didn't spend so much money on the construction of this watch.

After a little thought, Zhao Yu began to search for all the prerequisites for building the watch.

After a series of comparisons, he finally collected 850 points.

It does not include the technology points spent by the seven basic technologies and the technology points of the secondary scientific research institutions.

Only the technological points paid for the construction of the four major factories required for the manufacture of watches, the optical touch factory, the ultrasonic sensor factory, the infrared image system analysis factory and the signal data processing factory.

"These four major factories were all created by my construction of other things, and they are also counted in the technology tree of watches..."

"Then if these factories are used to trade other commodities, can the technology points be returned repeatedly?"

【cannot】

The system cares about words.

Zhao Yu scratched his head, thinking that he had found a loophole, but it seemed that it had been blocked long ago.

This shows that no matter how the trade is done, the total amount of technology points he can return is fixed, unless he continues to develop new technology factories.

"850 points, really not bad..."

Zhao Yu took another look at the ten detection devices selected before. He has already built the required preconditions, and there is no need to pay twice.

Then the 850 technology points are enough for him to build all 10 detection equipment, and there is still some surplus to prepare the factories needed for the construction of spaceships.

After solving this problem, Zhao Yu began to meditate again.

"My product has been selected. What should I ask them about the earth?"

(End of this chapter)