Since the 20th century, humans have been exploring and exploring the electromagnetic wave signals of the entire universe, hoping to find evidence of extraterrestrial life. However, more than a hundred years have passed, and humans have not found any exact evidence of extraterrestrial life. In the entire universe, the Milky Way alone has 200 billion stars and several times more planets.

In the past tens of billions of years since the universe was born, there should definitely be many life planets like the Earth. Why did humans spend a hundred years not finding extraterrestrial life planets?

It's very simple. If human history is placed on the scale of tens of billions of years of universe, it would be too trivial.

Suppose there are two hundred people in a square, and each represents the corresponding life planet, then one person only has one blink. If two people blink together and see each other at the same time, it means that the two civilizations discover each other.

Now the problem is that you cannot speak or convey information, who can be sure that you can look at each other at close range in the blink of an eye?

On the time scale of the universe, the birth to rise and fall of human beings is just a blink of an eye. It is really too small to expect to be in the same development period or even in the same period of survival as another extraterrestrial civilization.

These extraterrestrial lives with snake scales stared at Lu Yuan without blinking, and the high-frequency sounds that came from somewhere were very regular... as if they were communicating information with each other?

The two sides obviously cannot communicate. Lu Yuan has confirmed this point. The sound organs of each other are very different. I guess the most fortunate thing is that the other party can reduce the frequency of sound waves, etc. Why does the other party reduce the frequency of sound waves?

Lu Yuan was stunned and suddenly noticed something was wrong.

Suppose that humans accidentally discovered extraterrestrial life, and in such a short time, would they consciously turn up their voice frequency?

Soon, Lu Yuan understood why the other party did this.

A human came over from outside alone.

Lu Yuan only felt that if he could see any abnormal alien creatures here, he would not be too surprised, but would accept it easily... But he was really not prepared to see another human here.

Just kidding?

This is a star field that is not many light years away from the earth. Are there humans here?

After a trance, Lu Yuan then gathered his sight to the human being walking towards the opposite side.

“Huh?”

With this concentration, he discovered the different characteristics of that man and man.

The man's hands were obviously much longer, almost hanging down to his calves, and his shoulders were much wider than normal people, his chin was slightly larger and his nose bridge was too long. But no matter what, even if he put this person on the earth, it would only make people feel that he was a deformed child and had a bit of a ancestral rebirth. No one would deny that he was a human.

Why do you encounter humans here?

Is this a human who came here from Earth before him, or... it confirms the ridiculous speculation of a minority, that humans come from aliens?

Almost not many people believe this ridiculous guess. It is reliable to say that life on Earth comes from alien meteorites, but to say that humans come from aliens, it is unreliable speculation.

The man walked up to Lu Yuan and stopped, and looked at Lu Yuan naked with his extremely humanized eyes.

After the particles were reorganized, Lu Yuan had no clothes, so it was very normal not to have any strands. Moreover, at this moment, he would not feel ashamed or embarrassed to face a few extraterrestrial lives, even when facing humans.

As humans evolved into another living body, he has only some thought habits, emotions, and physical appearance that have a lot of connection with humans.

The man's mouth opened slightly, and the frequency of sound waves was almost the same as that of normal people. However, it was a language that Lu Yuan had never heard of before. No wonder those mechanical and steel spiders in the past reduced the frequency of sound waves, perhaps because they regarded him as a person's kind.

Lu Yuan thought about it, but the other party thought he could not make a sound, so he spoke, "Can you understand what I said?"

He said it back and forth in Chinese, English, Russian, Japanese, German, and Spanish, and the other party showed an extremely puzzled expression, which also showed that he could not understand what Lu Yuan said at all.

This is normal.

If the other party could understand, Lu Yuan would really be devilish.

Humans can be divided into three categories for cracking unknown languages.

The first category is to record known words with unknown symbols; the second category is to record unknown languages ​​with known symbols; the third category is to record unknown languages ​​with unknown symbols.

There is no doubt that the third type of unknown is definitely a terrible degree of cracking against unknowns.

The above three types are all based on the environment of the earth and are based on the human beings in different ethnic civilizations. If they are extraterrestrial living organisms, such as these snake scale creatures, even the pronunciation organs, the difficulty of cracking the other party's language will increase.

Fortunately, this "strange human" that suddenly appeared, although it looks a little weird, has the same pronunciation organ as ordinary humans, which shows that there is still the possibility of cracking the other party's language.

The man seemed to have a high status in this group of extraterrestrial lives. He waved his excessively long right hand, and the three mechanical steel spiders moved away, and finally did not aim their weapons at Lu Yuan.

Unlike Lu Yuan, who was not covered with strands, this man was wearing a dress of unknown material, which looked like a leather jacket, but had a little metallic luster, which did not hinder the man's movement at all.

"What's the meaning?"

Seeing this guy who was suspected to be a human, he pointed his finger outside and walked outward.

Lu Yuan thought about it and followed closely. After the guy came outside, he saw him saying something to the snake scale living organisms, and the snake scale living organisms stood aside.

Although the sunlight outside is not strong, it is much better than the darkness in abandoned buildings.

It was suspected of being a human being fiddling with items in a metal storage box. After a while, it took out a black "can" and took it to Lu Yuan, and made a strange sound in its mouth.

What are you doing?

Lu Yuan was not sure, so he frowned and took the black "can" and did not figure out what the use of this metal item that seemed to be "can".

He simply shook his head, regardless of whether the other party could understand it, so he handed back the "can" back, glanced around casually, picked up stones around, and began to place them on the sand.

It is okay if each other’s language is not in line with each other. If there is a language, it must be universal throughout the universe.

Of course it is the language of mathematics.

Lu Yuan first used one stone to represent the number 1, then two stones to represent the number 2, and so on to the number 10.

As soon as he finished the move, he looked back and saw that the guy who seemed to be a human was very happy and seemed to understand what Lu Yuan was planning to do.

1+1=2. This numerical calculation method of elementary mathematics may have had related concepts hundreds of thousands of years ago. At present, the most common bit value entry for humans is decimal. Lu Yuan used stones as the simplest and clearest number, and then wrote the corresponding Arabic numerals below, and finally came up with a decimal counting method.

This guy looks like a monkey.

When Lu Yuan turned around, he saw this guy who was suspected to be a human being, "scratching his head". Isn't it very similar to a monkey?

Especially this guy has too long arms and can do movements that humans cannot do at will, and it seems that his hands are more flexible than normal humans.

"Um?"

Just after Lu Yuan made a corresponding demonstration, the guy also squatted on the ground and used his fingers and stones to imitate Lu Yuan to place it.

For numbers 1 to 3, the other party uses a point, two points, and three points to represent it. Starting from 4, it is convenient to use the use of two points plus a horizontal one among the three points. When the number 6 becomes a triangle, the number 7 is counted from a circle...

"Fiveth-central?"

Lu Yuan quickly understood the other party's number system, which was actually a 15-digit cardinal system that humans rarely use!

15 is the competition and combination of prime numbers 3 and 5, and it is also the competition and combination of ternary and quintal. Therefore, the decimal retains the factors of ternary and quintal. Each state in the decimal system has traces of ternary and quintal factors. Its quotient value contains factors of ternary and quintal factors of infinite loops in ternary and quintal finite decimals 2, 4, 6, 8.

But this is not the reason why Lu Yuan was surprised.

The other party actually simply drew the double helix structure of RNA and DNA, pointed to himself, drew a more complex pattern of double helix intersection, and pointed to those snake scale life forms.

"I see."

Lu Yuan nodded slightly.

The denomination is a complex of ternary simple double factor 3 and 6 helix and quintal simple four factor 2, 4, 6, and 8 helix. The origin of life, ribonucleic acid and DNA are both double helix structures, and DNA is composed of four bases, which has the relationship between ternary and quadruple combinations.

Of course, this guy is not simply using the pentacle, but explaining that the pentacle they use is related to their life structure.

The two sides used this method to communicate, which made Lu Yuan realize that although the two sides were completely different in language, similar pronunciation methods and face-to-face proof communication, it may not be a real impossible to learn the other party's language.

But then again, the efficiency of writing and communication on the sand is too low.

Lu Yuan looked around and saw that since the other party could make mechanical spiders, he should have a better communication platform.

(To be continued.)
Chapter completed!