I am reborn as Sai, but the animation three-body

Chapter 253 History of Cretaceous Civilization

"Civilization 500 million years ago? How did they leave traces?" Say wondered, this time period is too long.

"On the one hand, there are traces of some industrial activities, and on the other hand, there are inscriptions on stones, and this super civilization was born 500 million years ago, but they were extinct only a few million years ago."

"Fortunately, they have a long history, because of faults caused by various disasters, this civilization has existed for tens of millions of years, and this civilization finally set up a museum on Pluto.

"The intelligent creatures in this museum have used hibernation technology to carry out a lot of maintenance on the museum for tens of thousands of years, and even established a very small civilization, allowing the museum to preserve important materials as much as possible."

"It means that in World No. 3, a civilization composed of another intelligent species has coexisted with humans for a period of time?" Sai asked curiously.

"Maybe, the data of that civilization did not mention humans on a large scale, or they did not mention humans in the important materials they left behind. We speculate that humans should not have developed at that time."

"And to be precise, it is not one intelligent species. This civilization is composed of two intelligent species. Because these two intelligent species have certain defects, they form a symbiotic relationship." The president of the Solar System Fleet said.

"Huh?" Say was stunned after hearing this. Is it okay for two intelligent species to form a civilization?
Then the President of the Solar System Fleet and Say talked about the birth process of this civilization. They are precisely the interdependent civilization of dinosaurs and ants.

Due to a coincidence, the two species formed a symbiotic relationship. The ants helped the dinosaurs do some fine work, and the dinosaurs helped the ants provide supplies and knowledge.

Together they created the Cretaceous civilization. Although they also encountered meteorites that extinct dinosaurs, they still survived and gradually developed civilization.

But the Cretaceous civilization suffered the same bad luck as the humans in World 3, because when they developed into the information age, they encountered solar storms.

This solar storm destroyed the Cretaceous civilization on the earth, and then the Cretaceous civilization on the earth became extinct more than a dozen times in a row due to the aftermath of the solar storm in 4000 million years.

But with good luck, these Cretaceous civilizations all carried out some terraforming transformations on Mars. When they were destroyed for the last time, some Martian colonies survived on Mars.

Subsequently, the Cretaceous civilization on Mars developed with difficulty in millions of years, transformed Mars to be like the earth, and began to develop near-Earth space on a large scale again.

However, the Cretaceous civilization once again ushered in the catastrophe of extinction, that is, Mars encountered a meteorite, and this meteorite was larger than the Cretaceous period, directly destroying the Martian ecosystem.

For the Cretaceous civilization, this can be said to be a disaster, but they had a colony ship on the moon at that time, and that colony ship was not destroyed.

Fortunately, the Cretaceous civilization left more legacy this time, and it took 5 years to restore the previous technological level. However, because the lunar environment is relatively harsh, their political system is similar to that of Trisolarans.

As a result, the ideas of the Cretaceous civilization were restrained, and its technological development was slow. In many cases, there were no major technological breakthroughs and social changes for thousands of years.

Later, they encountered several rounds of major blows, but these blows did not cause civilization faults, and there is no possibility of faults in space, because after space faults, they cannot survive.

But this also prevented the Cretaceous civilization from making any technological breakthroughs for millions of years, but they discovered that solar storms cannot affect Saturn over there.

Therefore, the Cretaceous civilization proposed a plan similar to the bunker plan, and began to shift the focus of civilization to the construction of giant colonial ships, which migrated to Saturn in 10,000+ years.

After hearing this, Say felt a little sympathetic to the Cretaceous civilization. What evil did they do to be able to alternate between extinction and rebirth so frequently, which is comparable to the tragedy of the Three-Body Civilization.

However, Say was also a little curious after hearing this, why it took tens of thousands of years for this civilization to migrate to Saturn.

You must know that it took human beings two centuries to turn Jupiter and Saturn into their own back gardens.

"Because the Cretaceous civilization used bulky working medium fusion engines, and their spacecraft were not equipped with an ecological cycle system, and they have not been able to develop fusion technology, and they mainly rely on solar energy and nuclear fission energy for survival." The president of the Solar System Fleet explained road.

With such backward technology, if you want to immigrate to Saturn from the moon on a large scale, you are looking for death. Most of the spacecraft seem to have died on the road and on the way to open up Saturn, so it took so long.

After immigrating to Saturn, they spent more than [-] years rebuilding civilization, and finally managed to gain a foothold on Saturn, and raised their technical level to the level of humans in the mid-Crisis Era, building dozens of space cities.

However, after Saturn rebuilt a stable civilization, the Cretaceous civilization seemed to usher in a technological explosion. Of course, it was not as good as the technological explosion of human civilization, but relatively speaking, its previous level was very fast.

In the tens of thousands of years that followed, the Cretaceous civilization developed to the current level of human technology. They seem to have developed the entire solar system and established huge cities on eight planets and in space.

At that time, the four terrestrial planets were their mining fields, the four Jupiter-like planets were their fuel depots, and the industrial base and economic center were located in the bustling space city.

Tens of thousands of years later, the Cretaceous civilization experienced troughs and upsurges, and their scientific level even approached the Trisolaran civilization, and even the sophon project was gradually proposed.

But unlike the Trisolaran civilization, the Cretaceous civilization had no desire to develop because of the abundant resources in the solar system, so they did not expand in the following time.

"What happened later? Since they are so advanced, have they tried to leave the solar system?" Sai asked curiously.

Since the technological level of the Cretaceous civilization is no less than that of the Trisolaran civilization, it should not be difficult for them to accelerate the speed of the spacecraft to one-fifth of the speed of light. This civilization should have the desire to expand outward.

"According to the data, they have launched unmanned probes, but the probes disappeared mysteriously after leaving the Kuiper belt, so the Cretaceous civilization gave up its external expansion." The President of the Solar System Fleet explained

"Misunderstanding? Oh yes, it is estimated that those probes have returned to the main world." Sai remembered the characteristic of the parallel universe, which is only a few tens of astronomical units in size.

"As for the following things, we are still interpreting the information in the Cretaceous Civilization Museum, and we don't know what happened afterwards." The President of the Solar System Fleet said.

(End of this chapter)