When you think of the tireless human beings in the Earth era, they sent messages to the universe, which is really sad and angry! Poor humans can't detect this barrier, and they can't jump out of it!

The various signals received by human astronomical observations every year are at the exabyte level, and the amount of data will rise to the zettabyte level after the square kilometer array is added, while the signals of extraterrestrial civilizations, reaching 5σ of the certainty of scientific discovery, are not once.

Ruan Lin gradually regained his composure, since this is an indisputable fact, then he needs to find this answer on behalf of all mankind.

The road to verification is extremely difficult, and what can be done now is to set a hypothesis based on the current situation, and then step by step to verify it or disprove it.

Ruan Lin whispered slowly: "Just now, I received a signal from this civilization to you for thousands of years, according to your calendar, it is tens of thousands of miles ago.

If the 'information barrier' hypothesis is true, this message should have only cost 210 yuan to reach your star field, but why is it only received now? ”

Different civilizations and races have very different ways of thinking about things, which requires brainstorming, and Ruan Lin already has a rough guess, and now it is only necessary to collect their ideas and further refine this hypothesis.

Kan took a deep breath, and he also regained his composure: "This barrier may have broken not long ago, and the signals piled up in the star field were unhindered at this moment, and they flew to the destination they should have arrived. ”

Ruan Lin continued:

"Now, then, the attenuation of the propagation energy of electromagnetic waves due to distance and the interference of cosmic background radiation are not taken into account. After I measured these electromagnetic waves, the news was indeed long overdue. If, as you said, this news is piled up in our star field, why is our civilization unaware? Or can't you find out? ”

Kan replied, "Maybe this barrier is four-dimensional?" We, the three-dimensional creatures, don't feel this information barrier. ”

Ruan Lin stopped pacing, he stood there and thought:

Humans in the Earth Age are not so mentally retarded, and if humans can receive a reflected signal, then this barrier will definitely be discovered.

Unless this barrier can absorb all the signals, it's like a "Dyson sphere" – enveloping the entire star, absorbing all the energy from the star.

If the barrier had been broken 21 years ago, the messages would still have been sent to their original destination.

In other words, this barrier does not absorb all the signals, it acts as a "repository of information", only where the information sent by human beings towards the universe is stored.

What does the solar system look like as observed from the outside world?

Ruan Lin immediately asked, "From the perspective of your civilization, what is the star system where our civilization is located?" Do you have any information? ”

Ruan Lin stood at the chair in front of the computer.

Kan turned on the computer's built-in "Stellar Overview of the Far Sunset 100 light-years away".

Ruan Lin immediately pointed to the orange-yellow main sequence star in the picture.

Directly above Gliese 581 is α Centauri, and beyond that, is the Sun.

Kan raised his head and froze for a few seconds: "Are you sure you are not wrong?" This is your star field? ”

"I'm sure this is indeed where our civilization is."

The solar system is called "1-20" by them.

Kan closed the picture, opened an astronomical observation software casually, and after entering 1-20, he jumped directly to the solar system.

It's like an astronomical simulation software on Earth, with the specific parameters of the solar system and the number of planets displayed on the screen.

Their definition of planets is the same as that of humans in the age of Earth, and there are only 8 specific planet pictures on the screen, and Pluto has been kicked out of the solar system.

Kan asked again, "Is this really the star field you are in?" ”

Ruan Lin was extremely puzzled: "Why would you repeat this question?" ”

Kan stared blankly at the blue planet on the screen: "Our civilization observed the anomaly in this star field a long time ago, a ray star suddenly appeared in this star field, and two planets have been torn apart by the ray star and no longer exist. ”

Ruan Lin said lightly: "Yes, there is a planet that is my home planet, the earth. ”

Kan turned his head and looked at Ruan Lin in disbelief, wanting to speak again.

Ruan Lin pointed to the third planet in orbit, and Kan immediately clicked here.

The appearance of the earth is suddenly magnified on the screen, this is the home of mankind! The home planet of Earth's civilization.

Kan clicked on the "1-203 data" on one side, and the introduction of the earth and the solar system filled the entire screen.

The translated content is:

1-203 is a planet orbiting a class 1 star, a super-life planet with a mass of about 0.3 far-setting star standard mass, and it takes 10 miles to complete one orbit of its star, exactly 10 times that of a far-setting star. It was discovered 16,500 years away.

The planet is the best habitable planet, the first time such a perfect planet has been discovered by this civilization. Astronomers believe that intelligent life exists on this planet.

The famous singer "How" also edited a song for this planet: "We Are Not Alone".

As our civilization develops, we have always kept an eye on this planet.

At 17,000 years away, the Ming Dynasty sent a friendly message there, but did not receive a reply.

At 17200 years away, the civilization sent music to the site again: "Lonely High Light", but still did not receive a reply.

.....

Ruan Lin flipped through it for several minutes, and the number of times they sent messages towards Earth reached 4,262!

Ruan Lin and Kan looked at each other for a few seconds: "No wonder you keep asking me this question, you have also sent countless messages towards the location of our civilization!" ”

Kan also felt endless regret: "Yes, when you said that you were 20.3 light years away from us, I thought of this star field, and when you just pointed here, I felt that our two civilizations were really sad!" ”

"At the same time, I have another question, I hope you don't feel bad about this, has your civilization long since left the home planet? Or do you say .."

Ruan Lin did not shy away from this question: "Our civilization did not leave its home planet at that time. ”

Kan's eyes widened, his skin turning dark blue again, and he didn't continue to ask.

"I'm so sorry for bringing up your bad memories."

Kan's claws were bent into fists and placed on his chest.

"It's okay, it's a long time ago."

Ruan Lin continued to flip through the following entries:

Additional information: There are 8 planets in this star field, which is one of the few star fields with 8 planets, and it is almost impossible to appear in the universe.

There are 6 planets in 1-1067, another 106.7 light-years away from the local field, but still not as large as 1-203.

Detection method: radial velocity method.