Lu Tianyu has received much more information in the past ten minutes than he has memorized in his life, and there are countless questions in his heart that need to be answered by his brain.

"What the hell is S-Class clearance? Is there a higher authority above, how can I obtain it, what are the differences between them, and what powers do I have now for my S-level permissions......", Lu Tianyu asked more than a dozen questions in one breath, each of which he urgently needed to know now.

"Please don't worry, Your Highness, Zhi Brain has detected that Your Highness has a lot of puzzles, Zhi Brain has prepared a personal auxiliary Zhi Brain for His Highness, and His Royal Highness can inquire through the Auxiliary Zhi Brain if he has any doubts!"

Then a silver-white ball of light suddenly appeared in front of Lu Tianyu, which looked a little like a marshmallow on the earth, but Lu Tianyu knew that this was not a marshmallow, but a high-tech product unknown to him.

"This is the personal auxiliary brain? How do I use it? ”

As soon as Lu Tianyu's words were finished, the light cluster in front of him jumped, and the next moment he drilled into the smart bracelet on his wrist in front of Lu Tianyu.

Then a very wonderful picture appeared in Lu Tianyu's mind, as if there was a huge screen in front of him, and this screen was still transparent, which did not affect his eyes to observe the surrounding scene at all.

"The auxiliary brain system is activated, what does Your Highness want to inquire?"

The voice of the auxiliary brain appeared in Lu Tianyu's mind, which was also too high-tech, and the technology on the earth was compared with the auxiliary brain.

However, now Lu Tianyu is not in a hurry to care about the auxiliary brain, and will have a lot of time to study in the future, "By the way, I just asked what is the connection between the Earth civilization and the Martian civilization, can you briefly talk about it?" ”

"Given that His Highness's brain domain is being developed, and the detailed information has been transmitted to His Highness's auxiliary brain, the earth civilization did not exist during the Martian civilization period, and there is no civilization inheritance ...... between the two."

Lu Tianyu's heart was relieved, and he was also disappointed, he had some expectations, but he didn't want the Earth civilization and the Martian civilization to have a connection, which was both a good thing and a bad thing.

Zhi Brain continued to explain: "The Martian civilization originated from the earth time a billion years ago, and the earth civilization has only experienced millions of years, compared to the Martian civilization, the earth civilization has just started, but the earth is a subsidiary planet of the Martian civilization, in the language of the earth civilization, the earth is the agricultural planet, resource planet, breeding planet, industrial planet, etc. of the Martian civilization, and it is also the extraterrestrial prison and outer space defense fortress of the Martian civilization. It's a pity that a sudden alien biological war forced the Martian civilization to abandon the solar system and the surrounding galaxies, and temporarily sealed the solar system, and when the Martian civilization technology develops again, it will come to the solar system again! ”

"The Martian civilization hasn't disappeared?"

"Of course it didn't disappear!" Zhi Brain explained unhurriedly: "When a civilization has mastered faster-than-light travel, it is very easy to colonize an alien planet, and it is very difficult to completely destroy a civilization, the Martian civilization has just given up the home planet, the civilization is not destroyed, and it will naturally return to the home planet!" ”

"When will the Martian civilization return to its home planet?"

Lu Tianyu had a very bad premonition, the collision of two civilizations would definitely not coexist peacefully, especially in the case of the huge difference in the scientific and technological level of the two sides, if it was not destroyed, it would definitely be enslaved.

"It's impossible to know for sure yet!"

Zhi Brain said: "When the Martian civilization left the home planet, it was already the early stage of the fourth-level cosmic civilization, and it was forced to leave the home planet because it could not defeat the alien creatures, and when it had the strength to defeat the alien creatures, it would naturally return to the home planet." ”

Lu Tianyu continued to ask: "To defeat alien creatures, how many levels of civilization are needed?" ”

"Minimum Level 5 Civilization Beginning!"

Zhi Brain seemed to know that Lu Tianyu didn't understand the classification of cosmic civilizations, and explained: "According to the classification of civilizations by the higher civilizations in the universe, civilizations can be divided into nine levels of civilization, first, second, and third level civilizations belong to low-level civilizations, fourth-level, fifth-level, and sixth-level civilizations belong to medium civilizations, and seventh-level and above belong to advanced civilizations. ”

Zhi Brain explained to Lu Tianyu in detail the division criteria of each level of civilization, the development of civilization is similar, just like people walking, some walk in a straight line, and some walk in a curve, but the overall goal is the same, that is, to explore the mysteries of the universe, when the civilization has a deeper understanding of the universe, the higher the level of civilization.

"How long will it take for the fourth-level civilization to develop into a fifth-level civilization?"

After listening to Zhi Brain's explanation, Lu Tianyu already had his own understanding of civilization in his heart, the first-level civilization is equivalent to the feudal era of the earth, and the previous era can only be regarded as the germ of civilization, or become a primitive civilization, not even a first-level early civilization. The feudal era entered the industrial age, mastered the use of more advanced energy, and also entered the category of second-level civilization, the time required for a first-level civilization to step into a second-level civilization is more difficult to determine, some civilizations need hundreds of years, or thousands of years, but there are also some civilizations that have always hovered in the first-level civilization for tens of thousands of years and can not develop, this is the magic of civilization development.

Therefore, it is a foolish idea to use the earth's civilization to measure the development of other civilizations.

"There is a bottleneck in the development of civilization, and the development of low-level civilizations can be accumulated over time, as long as there is enough time, even if it takes millions of years, any civilization can develop to the peak of primary civilization. But if the primary civilization wants to enter the middle civilization, that is, the third-level peak civilization enters the early stage of the fourth-level civilization, the accumulation of time completely loses its meaning, if it must be measured by time, it must be calculated in 100 million years, and it took 500 million years for the Martian civilization to enter the early stage of the fourth-level civilization, which is considered a medium development rate in other fourth-level civilizations. ”

"As for the fourth-level civilization wanting to enter the fifth-level civilization, if the luck is good enough, it won't be strange in 100 million years, or a billion years!"

"A billion years!"

Lu Tianyu was speechless for a while, what is the concept of one billion years, the history of the earth civilization can be traced is only about one million years, the entire history of the Martian civilization is not one billion years, and the formation of the solar system is more than four billion years, such a time span will make people feel powerless.

The earth civilization is now at the peak of the second-level civilization, and it has stepped into the category of third-level civilization with one foot, but there is still a long way to go before it can enter the third-level civilization, and as for the peak of the third-level civilization, Lu Tianyu can't even think about it for a long time.

Lu Tianyu felt ridiculous for his unfounded worries, for the history of the entire civilization, his life was so small that it was not even dust, and he was worried about the collision of the Martian civilization and the earth civilization, isn't this the modern version of the unfounded worries?

"And what about the alien invasion?" Lu Tianyu found another pressing problem.

"This starts after the Martian civilization enters the fourth-level civilization?"

"That's a long story short!" Lu Tianyu has detailed information in the auxiliary brain in his hand, but he still wants to hear what the main brain has to say.

"Cosmic Chinese is dominated by scientific and technological civilization, and has also become the mainstream civilization, but there are other kinds of civilizations besides scientific and technological civilization, such as alien biological civilization, which is explained in the language of earth civilization, that is, the Zerg civilization, which is a civilization that survives by plundering the resources of other civilizations."

"When the Martian civilization was exploring the outer sky, it encountered alien creatures on the colonized planet, and after the alien creatures discovered the Martian civilization, they launched a crazy attack on the Martian civilization, and the war was fought from the colonized planet to the home planet, which lasted for thousands of years, and the Martian civilization was exhausted and had to exchange space weapons for a higher civilization, and the entire solar system was blocked with alien creatures, and the Martian civilization had to leave the home planet to find a new home."

"You're saying alien creatures are in the solar system right now!" Lu Tianyu's voice trembled, the whole person was not good, oh my God! There is an alien creature around the earth civilization that even the Martian civilization cannot defeat, what should the earth civilization do, this is the rhythm of the sky about to fall!

"After the Doomsday War, in order to destroy alien creatures, the Martian civilization used advanced civilization space blockade weapons to trap alien creatures in the solar system."

Zhi Brain still said with his inherent frequency without hurry: "At the beginning of the war, the two sides were evenly matched, and later alien creatures quietly sneaked into the solar system and launched a sneak attack on the home planet of the Martian civilization, and the Martian civilization suffered heavy losses. The Martian civilization gave up on continuing its entanglement with alien creatures and left the solar system, trapping greedy alien creatures in the solar system. The space blockade technology comes from advanced civilizations, which can form a cage in space within a range of several light years, which is also the most effective means for intermediate civilizations to resist alien creatures. Normally, after being isolated for hundreds of millions of years, the alien creatures in the space cage will enter a period of decline due to the lack of dark energy replenishment, and as long as there is enough time, the alien creatures will naturally disappear ....... ”

Zhi Brain explained very clearly, but Lu Tianyu didn't listen to it, and things were not as simple as Zhi Brain said, after all, the positions of the two sides are different now, and he has to consider the current situation of the earth civilization.

"That is to say, alien life is still on Mars, and there is still a threat to Earth civilization? Why doesn't the Earth know about this? ”

"Earth civilization has discovered alien creatures!"

Zhi Brain obviously did not regard Lu Tianyu as a member of the earth civilization, "The earth civilization that His Highness said does not know about this, it is completely because someone on the earth has blocked this matter, according to the detection of the wisdom brain, the earth civilization is at war with alien creatures, because the strength of alien creatures has not yet recovered, the earth civilization has not yet had a clear understanding of the strength of alien creatures, and when the alien creatures gradually recover some of their strength, the earth civilization will be destroyed by alien creatures!" ”

"How is this possible!"

Lu Tianyu's brain fell into a state of panic, if these words were not from Zhi Brain, he would definitely listen to them as a joke, reason told Lu Tianyu that what Zhi Brain said was true, but Lu Tianyu didn't understand a little, how did the earth civilization discover alien creatures, why hide it, do you want to wake up the dormant alien creatures?

This world has gone crazy, and the sense of crisis hit in an instant, making Lu Tianyu feel deep fear!

"Alien creatures are hiding on Mars, when the earth civilization was exploring Mars, they inadvertently discovered the existence of alien creatures, which stimulated the self-defense function of alien creatures, this thing could have been avoided, arrogant and stupid earthlings wanted to kill dormant alien creatures, and they couldn't do their best to take the way to die, but this time the alien creatures were awakened from their dormant state, and their strength fell a lot again, accelerating the process of weakening alien creatures, if there is no replenishment of dark energy, alien creatures will lose all their vitality in 100 million years!"

"Could it be that the civilization of the earth is going to be destroyed!"

In this sentence, Lu Tianyu asked Zhi Brain at the same time, he was also asking himself, he had a bad premonition, before human beings understood alien creatures, just like Zhi Brain said, launched a stupid war, what is this not looking for death?

"With the current strength of the earth's civilization, the possibility of defeating alien creatures is almost zero, unless a miracle occurs!"

This is not the answer Lu Tianyu wants, and he also knows that it is useless for him to be anxious here, and even leave here by himself and announce this matter, will anyone believe it?

It is foreseeable that once you spread the information of extraterrestrial creatures, you will most likely be blocked by the federal government, and from the standpoint of the federal government, there is also a reason for the federal government to do so, and the extraterrestrial biological incident is not intended to be 10,000 hydrogen bombs exploding on the earth, the earth's economy will collapse, the federal government will have a crisis of confidence, and the riots will spread around the world, and then the earth will perish without fighting.

At this time, Lu Tianyu also calmed down, the key is that it is useless to be anxious, but to make himself chaotic.

"Alien creatures hibernate on Mars, and if no one alarms the main body, they should not be able to get the replenishment of dark energy, and finally die slowly, is that true?"

"Yes!"

Zhi Brain replied: "Dark energy is the basis of the operation of the universe, just like the earth civilization cannot leave the water source, dark energy is also the basis for maintaining life, after the Martian civilization blocked the solar system, the consumption of dark energy gradually decreased, and alien creatures could not get dark energy replenishment in the solar system, and their vitality would be cut off until they died!" ”

"That's not right!"

Lu Tianyu found the error in Zhi Brain's words and retorted: "Are you saying that the dark energy in the solar system is now thin, and alien creatures will slowly and naturally die, so why is the earth civilization not affected?" ”

"This is a misunderstanding of His Highness!" Zhi Brain seemed to know that Lu Tianyu had such a question, and explained: "That's because the earth civilization doesn't understand dark energy at all, so it can't study dark energy, according to Zhi Brain's analysis of the information of the earth civilization, the life span of earth people is usually less than one hundred years, and it is difficult to break through the limit of a hundred years, there have been immortal cultivators on the earth, and the lifespan of those people is easy to exceed a hundred years, and the aura or immortal energy absorbed by immortal cultivators is actually dark energy, so they can live many years longer than ordinary people, But it's a pity that the dark energy in the solar system is too thin, so those immortal cultivators can't go to the next level....... ”

(End of chapter)