The expert continued: "Only when writing is born can there be cultural inheritance and even the development of a glorious civilization. Word of mouth alone produces too many variables. Mathematics, on the other hand, is a step up in language, which means a certain level of logical thinking and the ability to plan for the future. ”

"After the birth of mathematics, it was possible to manage a larger population, and to establish a series of standards, including the reserve of goods, weights and measures, monetary units, and then form a series of transactions, from primitive tribes to nations."

“…… If, on future trips, we are able to encounter more civilizations in the Stone Age, we should be able to prove it. ”

Zhang Yuan nodded and said: "In other words, mediocrity has appeared from the beginning, and races with intelligent minds may not be able to form civilizations, let alone scientific and technological civilizations. We're already a pretty good species in the universe. ”

The vast majority of races, simply unable to fully realize their full potential, just like the Riley civilization, are inexplicably stuck.

Immediately afterward, a photograph appears on the screen, rummaging through the most original databases.

“…… The Moster culture of human beings belongs to the category of Paleolithic typical artifacts. If you look at this picture of an excavated artifact, it is a side scraper and a triangular pointed vessel made of stone chips. In addition, there are concave tools, serrated tools, stone balls, blunt-backed stone knives, and small hand axes. ”

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

"But we can't be sure that the ancient human beings who came out of Africa to form the so-called Moster culture were influenced by the civilization of the Enlighteners." Because there are many similar cultures, there is no written record of the whole process. ”

In the trough of mediocrity, it is normal for a species to stagnate for tens of thousands or even hundreds of thousands of years, and it is not normal for humans to advance by leaps and bounds in technology for hundreds or thousands of years.

That is, according to what the Enlighteners are doing so far, they will give appropriate and small help to potential species. ”

If the other party has really visited Earth, then there is a high probability that they will help humanity a little.

"Another point, if the Enlightener civilization really exists, then it must be a fourth-level civilization, or a more powerful civilization. Because the distribution of cosmic strings is not static, the distribution of cosmic strings 150,000 years ago is not what it is now, and there is no cosmic string in the vicinity of the earth and Riley. Therefore, if the Enlightened civilization really exists, there is a high probability that they have already mastered the curvature of navigation, so that they can travel to and from the stars as they wish......"

"What a civilization full of whimsy and romance, what is this civilization for?"

Perhaps, this heuristic act, for them is very funny, yes, just for fun, forgive me for using this adjective...... The long-lived species must have a very different way of thinking than our short-lived species. ”

Immediately afterwards, the expert changed his words, "But it is also possible that it is for experimentation, or we have developed a prediction discipline similar to the historiography of new civilizations, and we need some civilization evolution as experimental samples." ”

"So I suggest that we conduct a thorough search of Riley, as well as the surrounding satellites, to see if there is an observatory for the Enlightener civilization!"

As soon as these words came out, everyone was shocked, could it really be that there was really an observation station of a high-level civilization near Riley Star? If that's the case, it means something else...... Dialogue with higher civilizations, and faster-than-light communication!

Without faster-than-light communication, it is difficult to transmit large amounts of data to the far other side of the galaxy.

When it comes to faster-than-light communication, many experts are excited, this is a technology that human beings dream of, if a scientific research station of an advanced civilization is really discovered, then what should be done? Do you want to talk to the other person, or do you directly study the technology? Are there any risks involved?

However, Zhang Yuan sat in his place and remained silent. They may have discussed this a long time ago, and even sent troops to conduct an all-round search as soon as the question was raised.

According to human thought, the best place to observe is in space, or on the moon of Riley.

This natural satellite is much smaller than the Moon, has been tidally locked, and will always have only one direction to point at Riley, making it the best place to observe it because of its infrequent geological activity.

But humans did not find any suspicious traces...... Not even the slightest clue.

This suggests that this guess is likely to be wrong.

Listening to everyone's discussion, Zhang Yuan quickly stood up and announced the relevant conclusion: "Everyone, please listen to me. If the other side had built the observatory on a bare satellite, it would have been easy to find, but we didn't find it. ”

"We will continue to search for this throughout the planetary system. It's just that 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 site is established on Riley, on the one hand, it is necessary to combat the oxidation of oxygen, and what can be maintained for tens of thousands or hundreds of thousands of years in space may only be preserved for hundreds of years in an aerobic environment.

On the other hand, it is necessary to fight against 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, building a space observatory is the best choice, even if this civilization is technologically advanced, there is no need to add difficulty to itself, right?" An expert stepped forward.

"I don't think they're going to have some kind of observatory here, to observe a ...... for hundreds of thousands of years Because the earth civilization has also been visited by the enlightened, about the solar system, human beings have been developing for an unknown number of years, footprints are all over every planet, if there are really alien ruins, it should have been discovered a long time ago. ”

This is true, and Zhang Yuan also agrees with this point of view. If there is no one on Earth, then there should be no one on this planet either.

It's just that many experts look at each other, not knowing whether to breathe a sigh of relief or sigh. In other words, there is no opportunity to talk to higher civilizations, which makes them feel very sorry, and they have a strange mentality like Ye Gong is a dragon.

"I think that more advanced civilizations should use virtual world technology to conduct related experiments......"