The expert continued: "only when words are born will there be cultural inheritance and even the development of brilliant civilization. Word of mouth alone has produced too many variables. Mathematics is a further step of language, which means a certain degree of logical thinking ability and the ability to plan for the future. "

"After the birth of mathematics, we can manage more people and formulate a series of standards, including material reserves, weights and measures and monetary units, and then form a series of transactions from the primitive tribe to the country."

"... if we can meet more stone age civilizations in our future travel, we should be able to prove this."

Zhang Yuan nodded and said in a voice, "in other words, mediocrity has appeared from the beginning. Races with intelligent minds may not be able to form civilization, let alone scientific and technological civilization. We are already a pretty good species in the universe. "

The vast majority of races simply can't give full play to their full potential. Just like Riley civilization, they are inexplicably stuck.

Then, a photo is displayed on the screen, which is found from the most original database.

"... the moster culture of mankind belongs to the category of typical artifacts in the Paleolithic age. Look at this picture of the once unearthed cultural relics, which is an edge scraper and a triangular pointed instrument carefully made of the stone chips. In addition, there are concave tools, serrated tools, stone balls, blunt back stone knives and small hand axes. "

"It shows that human beings at that time used various tools more widely in the process of practice."

The historian said excitedly, "but we are not sure whether the so-called moste culture formed by humans out of Africa in ancient times was influenced by the enlightenment civilization. Because there are many similar cultures, and there is no written record of the whole process. "

In the low valley of mediocrity, it is normal for a species to stagnate for tens of thousands of years or even hundreds of thousands of years. It is abnormal for humans to make rapid technological progress in hundreds of thousands of years.

"In other words, according to the current actions of the enlightener, they will give appropriate and small help to potential species."

If the other party has really visited the earth, the probability of a little help to mankind will be great.

"Another point is that if the enlightener civilization really exists, it must be a fourth level civilization or a more powerful civilization. Because the distribution of cosmic strings is not invariable. The distribution of cosmic strings 150000 years ago is not what it is now. There is no cosmic string near the earth and Riley. Therefore, if the enlightenment civilization really exists, they have high probability of mastering curvature navigation, and then they can go back and forth to all stars at will... "

"What a romantic civilization full of fantastic ideas. What is this civilization for?"

"Perhaps, this heuristic behavior is very interesting to them. Yes, just for fun. Please forgive me for using this adjective... The way of thinking of longer-lived species must be very different from our short-lived species."

Then, the expert changed his words, "but it may also be for experiments, or we have developed a prediction discipline similar to new civilization history, which needs some civilization evolution as experimental samples."

"So I suggest that we search Riley and the surrounding satellites to find whether there is an observatory for enlightening civilization!"

As soon as these words came out, everyone was shocked. Is there really an observation station of advanced civilization near Riley? If so, it also means another major event... Dialogue with higher civilizations and superluminal communication!

Without superluminal communication, it is difficult to transmit a large amount of data to the far end of the Milky Way galaxy.

Talking about superluminal communication, many experts are excited. This is a technology that human beings dream of. If we really find a scientific research station of advanced civilization, what should we do? Do you talk to each other or study the technology directly? Is there any risk?

However, Zhang Yuan sat in his own position and remained silent. This may have been discussed by them for a long time, and even when the problem was raised, they sent troops to carry out all-round search.

According to human thought, one of the best observation sites is in space, or on the satellite of Riley.

The volume of this natural satellite is much smaller than that of the moon. It has been locked by the tide. There is always only one direction aimed at Riley. Geological activities are not frequent. It is the best observation site.

But humans have not found any suspicious traces... Even the slightest hint.

This shows that this guess is likely to be wrong.

Listening to the discussion, Zhang Yuan quickly stood up and announced the relevant conclusions: "everyone, please listen to me. If the other side built the observation station on a bare satellite, it should be easy to find it, but we didn't find it. "

"This search will continue throughout the planetary system. However, if the scope of the search is too large, it is undoubtedly an act of looking for a needle in a haystack. "

If an observation station is established on Riley, on the one hand, it is to combat the oxidation of oxygen. Things that can last tens of thousands of years or hundreds of thousands of years in space may only last for hundreds of years in an aerobic environment.

On the other hand, we should also fight against possible geological disasters such as earthquakes and volcanic eruptions, and the data that can be collected on the surface is extremely limited.

"Yes, from a logical point of view, the best choice is to establish a space observation station. Even if the civilization technology is high, there is no need to add difficulty to yourself?" An expert came forward.

"I don't think they will set up an observation station here to observe for hundreds of thousands of years... Because the earth civilization has also been visited by enlighteners. As for the solar system, human beings have been developed for unknown years, and their footprints are all over every planet. If there are alien relics, they should have been discovered long ago."

This is true, and Zhang Yuan quite agrees with this view. If there is no on earth, then there should be no on this planet.

But many experts looked at each other and didn't know whether they should breathe a sigh or a sigh. In other words, the opportunity for dialogue with higher civilizations is gone, which makes them feel very sorry. There is a strange mentality like Ye Gong's Dragon.

"I think that more advanced civilizations should use virtual world technology to carry out relevant experiments..."