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I just want to tell you everything I know. But I still can't guarantee the authenticity of the information in my hand. Carly said seriously, This is top secret and involves national interests and people's living conditions. I have to consider , how should I say it?

Ding Mu also turned his body around and found a comfortable position, then held Carly in his arms and said coquettishly and cutely: Carly, just tell stories to the children, I will make my own judgment.

Hearing what Ding Mu said, Carly suddenly felt a lot more relaxed. She thought for a while and then started to say: Okay, then just think of it as listening to a story. All stories come from life. The identification of authenticity is your own business.

Okay, okay. Let's talk quickly. Ding Mu was quite anxious.

Carly smiled slightly and said softly: You know where we are.

Of course I know, we are on Earth.

Come on, use your knowledge to describe the earth's position in the universe. Kali competed.

I know that the earth is very small in the universe. Although the earth is one of the eight planets in the solar system, it is just an ordinary planet compared with the solar system. The solar system is already very big, but compared with the Milky Way, it is only more than three thousand One of billions of star systems; outside the Milky Way are extragalactic galaxies. There are more than 100 billion extragalactic galaxies about the same size as the Milky Way. The sizes of galaxies vary greatly. Ding Mu took a breath, Every time I see such huge data, I really feel No matter what kind of work you do, it’s worthless. We are insignificant humans under the stars!”

You have done a good job. Carly said, As far as I know, the current Milky Way is a very barren galaxy. Among the more than 300 billion stars in the entire galaxy, there are only a few small civilizations like the Earth. . The Earth is in the Milky Way, it’s a bit like your Saint Petersburg in the Pacific Ocean. This is just a metaphor, the actual density is much smaller than this.”

Ding Mu basically understood and said, You mean that the entire galaxy is like a sea and the earth is like an island. So, there are places in the universe that are more suitable for human habitation.

To be precise, it is not more suitable for human habitation, but more suitable for the emergence of civilization. Carly said, Humans are not the only intelligent creatures in the universe. In the vast universe, there are many galaxies with abnormal sizes. Huge, let’s just talk about it casually. The diameter of elliptical galaxies is between 3,300 light years and 490,000 light years; the diameter of spiral galaxies is between 16,000 light years and 160,000 light years; the diameter of irregular galaxies is about 6,500 light years and 2.9 Between 10,000 light-years. The mass of a galaxy is generally between 1 million and 1 trillion times the mass of the sun. The Milky Way is a barred spiral galaxy with a huge galaxy disk, about 100,000 light-years in diameter and about 3,000 light-years thick. In such a large spatial dimension, the density of civilization is different. We are accustomed to centering ourselves and calling other galaxies extragalactic. But the place with the highest density of civilization is in an elliptical galaxy tens of millions of light years away from us. A bright galaxy. There, a star system may have thousands of planetary groups, all with unified civilization and political power.

It's really eye-opening, but it's not difficult to imagine. Ding Mu suddenly felt the urge to conquer the stars and the sea.

I seem to have digressed a bit. Kali, with her legs curled up and nestled next to Ding Mu, whispered softly, Actually, there are many extraterrestrial visitors who have come to the earth. There are also many in myths and legends. Many flew into the sky and escaped to the earth. The legends of moving mountains and seas are all miracles of aliens. However, almost all aliens who come to the earth have one characteristic, they are often explorers rather than colonists. Because of the chasm between the Milky Way and extragalactic galaxies, It cuts off the meaning of acquiring resources. As far as I know, the energy consumed by alien technology flying across galaxies is countless times greater than the total value of the entire earth’s resources.”

So? Ding Mu asked curiously, This is the first time I've heard this statement.

Carly said with a slightly solemn tone: So, for alien creatures, the greatest value of the earth is the earth's civilization itself. Because resources cannot be transferred, but civilization can be copied. All the civilizations we create, music, art, architecture, Mathematics, physics, chemistry, and literature are all contributions made by people on earth to the entire universe. And in some theoretical research, our achievements are not low.

Carly's pillow story didn't have a particularly strong logic. It could be said that she just talked about whatever came to mind, but Ding Mu understood a lot.

I understand, no wonder, alien civilization cannot easily influence and change the earth's civilization. If it changes the earth's civilization and stifles the creativity of earth people, then for alien creatures, the only value of the earth will not be the same. exists.”

This is also the cosmic convention of all advanced civilizations and the convention of the Interstellar Explorers Association. Carly said, Before leaving the planet, under normal circumstances, our lives will not be disturbed. However, it does not exclude other people. , hold different views. They believe that only the integration and exchange of civilizations can create a better civilization.

I also agree with this view! Ding Mu's eyes flickered, This is obvious. Our culture in Dahua is excellent. It is eclectic.

Seeing Ding Mu's reaction, Kali smiled and said: There is a prerequisite for cultural exchange and integration, and that is that the gap in civilization levels cannot be too large. Otherwise, there may be a situation where communication cannot be achieved.

That's right. Ding Mu also quickly realized this. In fact, the current civilization is very mature, and it is time to communicate with alien civilizations in politics, economy, military, and culture.

Carly also said: I think so too. There are alien civilizations that are already in contact with relevant departments in the United States, relevant parties and even some companies. Once we enter the era of artificial intelligence, the speed of technological progress will be unimaginable. Most of these are Original to humans on Earth!”

What role did alien civilization play? Ding Mu said.

The character is a bit like a time traveler. Carly used a common vocabulary in Chinese online novels. A time traveler may be in front of the scene or behind the scenes. He may control huge power and may have the ability to predict the future. , may have a technological level that exceeds the contemporary level. However, they can at most provide a direction, and the real realization depends on us on earth. It is said that compared to other races in the universe, knowledge and genetic knowledge may be transmitted through blood, and humans on earth are the largest The advantage is the ability to learn, unlimited imagination and creativity, and the ability to reproduce. The more people there are, the more ideas there are and the more creativity there is.

I understand. I understand it completely. Ding Mu said, his hands and feet began to become dishonest, Carly, let's give full play to human strengths now!