Three metal nuts, strung together by the lizardman leader, serve as an ornament!

When they saw the threads on it, all of them opened their mouths wide and were in a wonderful state of vertigo.

Even the eight soldiers froze. At that time, it was dark and blind, and no one would care about the ...... around the neck of this lizardman leader It turned out to be a metal nut!

What does this mean and what does it mean?

Everyone's mood is no longer "shocked" can be described by the word "shock", it is simply unbelievable!

After a while, Dr. Rimbaud stood up and questioned loudly, "No, no, no, I believe it is because of human activities...... These lizards just happened to pick up the metal trash we left behind! ”

"There's a lot of our human scout drones and robots on the surface, maybe they've picked up some of the replacement parts. This possibility also exists! ”

Yu Yifeng nodded, feeling that there was some truth. He quickly turned back to a few engineering experts and asked, "Can you figure out the type of part in the picture, or the texture of the material?" Can you find out if we left it behind? ”

"This ...... It's hard! ”

Several experts in materials science immediately looked at each other, they had no physical objects in their hands, and they wanted to distinguish the materials of parts just by relying on a few blurry pictures? It's almost impossible please!

But they still took the picture and studied it, trying to find some clues. Human parts are tagged with subtle numbers, and they try to figure out if the nuts are numbered or not.

"No, Dr. Rimbaud! This conjecture of yours is very flawed. ”

It was Wang Yufan from the Propaganda Department who spoke, and he also said very excitedly: "These lizardmen are obviously cold-averse creatures, and in order to save energy, they usually don't run to the cold surface to carry out activities......"

"Our robots generally move on the surface, and even if the mechanical parts are lost, they cannot fall to a depth of seven or eight hundred meters underground...... And then they pick it up, right? ”

"This possibility is too low, too low!"

"Yes, you're right."

Unexpectedly, Rimbaud did not refute, but said with a feverish expression.

"If they don't have our human parts around their necks, then ...... Is it possible that there will be an even more powerful unknown civilization on this planet! A civilization more powerful than the lizardmen and has entered the Machine Age! ”

"The level of technology is immeasurable, from the era of the Industrial Revolution to modern times and even beyond us! After all, this simplest nut is still used in many of our machines...... They will not be phased out in the foreseeable future. ”

As soon as Rimbaud's words came out, everyone suddenly became excited, shocked, or worried, and there were all kinds of emotions.

If the silly lizardfolk can be easily controlled, what about a more powerful other civilization?

What about a civilization with unknown technological standards?

Will humanity face a war?

"No, Dr. Rimbaud, I think...... Even if this unknown civilization does exist, its technological level will not surpass ours! ”

Another scientist stood up and retorted: "We are above the atmosphere of the planet Nix, and we have not observed any satellites!" How powerful can a civilization without satellites be? ”

"That maybe, they live hundreds or even thousands of meters underground, and they can't find satellite signals. What is the use of launching a satellite? One of the councillors whispered down there that it didn't think the people in the underground needed satellites.

Everyone here has different opinions, each with their own opinions, just like brainstorming.

Soon, all the messy whims came out.

But the vast majority of people think that if this unknown civilization exists, it must have much lower technology than humans!

Artificial satellites, not only GPS, but also space stations, astronomical telescopes, and so on.

Could it be that this unknown civilization is not interested in the endless space at all? Without such curiosity, their potential for development must be quite limited, and not even necessarily modern science!

Either that, they are not technologically advanced enough to launch satellites. After all, the Nix Star has a thick atmosphere and high gravity, and it is much more difficult to launch a satellite than the Earth.

Moreover, no large buildings have been found on the surface...... Will the high-tech civilization under the ground never drill out of the ground?

Even...... There is another version that this civilization is extinct!

"This civilization used to be glorious, and there used to be a satellite system in the sky, but then for some reason, the civilization became extinct. And then there was the birth of the indigenous lizard! Dr. Rimbaud began to speak freely again.

Whenever it's his turn to come up with a whimsy, he can always pull out something that no one else can think of......

"There may have been satellites in the sky, but when the life comes, they are attracted by the center of the earth and all of them fall, which is also possible......"

In fact, sooner or later, artificial satellites will fall, because most of them are hundreds to thousands of kilometers above the ground, and the atmosphere there, although very thin, friction still exists.

When the satellite velocity falls below one velocity, it falls. That is, every artificial satellite has a lifespan.

Okay, Rimbaud's conjecture was a bit of nonsense, but it sounds like there's some truth, at least it's possible.

Even from another psychological point of view, it makes quite sense.

The reason is none other than one thing: competition for survival!

The new human civilization is an alien colonist, so it has a tolerant and curious attitude towards these native intelligent life.

But can two indigenous intelligent beings really coexist in harmony?

According to human understanding, I am afraid that it is very difficult. Especially on this barren planet, which lacks light and energy, the competition for survival is too fierce!

Just like human society, if a kind of intelligent monkey is found on the earth that is as intelligent as humans...... What would humans think?

The whole human society will definitely panic and be shocked! It is possible to even trigger a massacre......

Orangutan Rise is not that easy.

No matter how tolerant human beings are and do not engage in genocide, they will strictly monitor and even enslave these intelligent monkeys to prevent their rise from becoming a threat to mankind.

After all, these are two races, and there is no benevolence and morality between races!

But now, although these lizards have a difficult life, they still seem to be very free, and they can even send people to send Wu Hao and eight others out of the surface. This illustrates...... No one restricts or enslaves them!

So Dr. Rimbaud's conjecture makes some sense, and this unknown powerful civilization may be extinct.

Of course, these smart brains here have also come up with all kinds of other strange ideas......

For example, this nut was left behind by another alien civilization!

That is, the remnants of a real interstellar civilization!

At present, no traces of alien spacecraft have been seen on the surface of the earth or in orbit in space. So these interstellar civilizations may have come to this planet to investigate and then left.

They left behind only these useless parts, and as a result, these indigenous lizards were treasured and passed down from generation to generation as ancestral treasures.

It's also possible!

There is also a theory: an alien spacecraft crashed on this planet...... Humans can start picking up trash again......

Yu Yifeng covered his head, he felt that this possibility seemed to be there.

Since the solar system is an interstellar battlefield for extraterrestrial civilizations, this star system more than 20 light-years away may have also been an interstellar battlefield at one time...... No one knows how many light-years the war between interstellar civilizations can stretch.

Well, so to put it this way, there are alien spacecraft wreckage everywhere in this star field?

Or is it the luck of humanity that is particularly good?

"There are results!" In the midst of the heated discussion, an expert in materials engineering exclaimed: "As you can see from the pictures, the surface of these nuts is full of rust!" Didn't see our number. ”

It is not easy to get this result, from a dull black and white photo, to see whether a small nut is rusty, it takes a lot of modeling, comparison and calculation.

“…… It's the whole nut that's full of rust! Some places are badly worn and look very old. And such rusty traces cannot be left by us humans. The engineer swore by it.

His subtext is that we human materials can't be so rubbish, they can't rust like this in two months......

No matter how bad the environment is, it is impossible to rust like this!