"It's not enough to increase the number of technology points just by time......"

After thinking about it, Zhao Yusi decided to determine the title as soon as possible, so that he could get more science and technology points.

Option 2 he did not consider.

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

"Just pick 3!"

[Select to complete, get the title: Mystery Merchant]

[Mystery Merchant: Trade with alien civilizations to earn additional technology point rewards.] (The number of technology points earned does not exceed the maximum number of technology points earned at the time the item was manufactured.) ）】

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

After careful study, Zhao Yu finally understood the situation of the mysterious merchant's return of technology points.

For example, if you use Screaming Sky as a trade item, it only costs 20 tech points to build Screaming Sky.

This means that no matter how many Howling Sky he trades, the maximum number of technology points he can obtain is only 20 points.

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

Basic sciences such as mathematics and physics, such as mathematics and physics, with a level of 1.99, or technologies in secondary application fields cannot be used as part of the transaction.

This shows that he can only sell products, not technology, and theory.

If other civilizations want to learn, they can only study it on their own according to their products, and as for how long they will be researched, whether they can study it or not, 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 native civilization, and finally died.] 】

"I see!"

Zhao Yu suddenly realized that the system was afraid that he would die too quickly, which gave him many restrictions.

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

"I used to be an earthling, this is my hole card, once it is seen, it means that I am going to lose......"

What does it mean to lose, Zhao Yu doesn't have to think about it to know, how he became a new host, the answer is all in it.

Thinking of this, Zhao Yu couldn't help but rejoice, fortunately, he has been cautious enough over the years.

Even Uncle Da, the butler, including the nine androids with high intelligence, didn't know his details.

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

What's more, his Level 1 base car, which has 10 population caps of absolute loyalty, is all tied to the butler and nine androids.

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

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

"However, before trading, I still need to think about my origins, although there is no need to tell the earthlings, but I need to deal with it in advance......"

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

There is no civilization, there is no large population, there is no development, a base that rises out of thin air.

"This background of the Lunar Underworld can be ruled out ......"

"The most reliable background is to implement the identity ...... aliens"

Zhao Yu touched his chin, thinking about it while perfecting.

"I ...... No, we came from a distant planet and fell on the moon by accident......"

"The spaceship is damaged, it can fly short distances, but it can't travel millions of light-years back home, no, you can't say that......"

"Since we are an advanced civilization, it is not known whether it is feasible for a spaceship to reach the speed of light, but perhaps, the real advanced civilization relies on other technologies, such as space jumping in science fiction, or wormholes......"

"If this is the case, it is not advisable for the spacecraft to blindly pursue speed, which is equivalent to a beggar fantasizing that the emperor asks for food with a golden rice bowl, and it is easy to be debunked after a long time!"

According to the housekeeper's assessment, the average technology level of the earth is only 0.75 level.

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

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

"The lightspeed spaceship can't be touched, just say that there is a technical failure, and there is no way to go back for the time being, just let them guess the rest......"

"The moon base was built to repair the spaceship, that's it, that's enough!"

Zhao Yu thought about it a lot, but in the end, he felt that it was better to say as little as possible and increase the room for maneuver.

It is better to let the other party think about various possibilities than for him to die in one direction, and finally be overthrown, and suspect that his identity is reliable.

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

"I don't give it to the military field, and I can't give it to the atmospheric environment simulation in life, so if I give it, they may want to be my neighbor......"

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

The existing living facilities in the base were all built by Zhao Yu when he was bored and panicked, and he couldn't stand it, and they all picked bargains, and the technology content was not much higher than that of the earth.

Inadvertently glancing at his watch, Zhao Yu's eyes lit up.

"You can trade this, the projection touches the watch!"

This is the technology discovered by Zhao Yu when he first crossed over, after the mobile phone ran out of battery, he wanted to get a mobile phone.

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

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

【850 Technology Points】

“850？”

Zhao Yuleng for a moment, he didn't spend so much money to build this watch.

After a little thought, Zhao Yu began to find all the preconditions needed to build the watch in the first place.

After a series of comparisons, he finally managed to get 850 points.

It does not include the number of science and technology points spent on the seven basic technologies, as well as the science and technology points of secondary research institutions.

There are only the scientific and technological points paid in the construction of the four major factories required to manufacture watches: optical touch control factory, ultrasonic sensor factory, infrared image system analysis factory and signal data processing factory.

"These four factories are all made by me by building other things, and they are even counted in the technology tree of watches......"

"Then if you trade other goods and use these factories, can you return the technology points repeatedly?"

[Can't]

The system is very sorry for the word.

Zhao Yu scratched his head, thinking that he had found a loophole, it seemed that he had already blocked it.

This means that no matter how he trades, the maximum amount of tech points he can return is fixed, unless new tech factories are developed.

"850 points, that's really good......"

Zhao Yu took another look at the ten detection equipment selected before, and the preconditions required had already been built, and there was no need to pay for it twice.

Then these 850 technology points are enough for him to build 10 exploration equipment, and he can also have some surplus to prepare the factory needed to build a spaceship.

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

"My product has been chosen, what should I ask them for the earth?"