"Then the problem is, taking our earth humans as an example, theoretically speaking, we can fly to various planets in the galaxy in 1 million years, so as long as aliens evolved 1 million years earlier than humans, they should have visited the earth by now. Pen Fun Pavilion www.biquge.info"

Gu Luo listened quietly, and Zhou Chen continued: "The universe is so big that alien civilizations that are 1 million years earlier than us are everywhere, and it can even be said that if we follow this logic, in the process of the development of human civilization, the alien civilizations that have visited the earth should be like carp crossing the river, so much so that our civilization cannot evolve normally at all. ”

"What you want to ask is, why didn't you feel aliens on Earth at that time, and your evolution was not disturbed, right?" Guru took over the topic and said with a smile.

Zhou Chen nodded: "It's not that we don't feel aliens, in fact, there is no shortage of UFO rumors on our planet, but it turns out that most of these UFO incidents are artificial hoaxes!" What really puzzles me is, why did they come to Earth without disturbing us? ”

In other words, Fermi's hypothesis suggests a paradox that, first, aliens exist, and scientific inference can prove that aliens evolved much earlier than humans, and that they should have come to Earth and exist somewhere; Second, aliens do not exist, at least during the Earth phase, and humans have not found any clues about the existence of aliens. ”

After listening to this, Gula thought for a moment and said, "This is a contradiction between your earth's civilization's overestimation of the existence of extraterrestrial civilizations and the lack of relevant evidence. ”

"Yes, on Earth, we call this contradiction the 'Fermi paradox.'"

"Actually, it's not hard to explain!" Gu Luo suddenly smiled and said indifferently: "First of all, based on realistic considerations, aliens must exist!" You are not overestimating the existence of extraterrestrial civilizations! ”

"But there are extraterrestrial civilizations, and there is no necessary connection with their visit to Earth and the disruption of your civilization!"

"First, although there are infinitely many planets that can give birth to civilizations, taking the galaxy as an example, there are probably no less than a million planets that have evolved primitive civilizations, but there are very few of them who can really go down the road of civilization evolution!"

Speaking of this, Guluo sighed with some emotion, "Among these millions of primitive civilizations, there are only a few hundred thousand that can collide with the fire of science and technology and smoothly develop into a first-level civilization, and the probability of evolution is less than one-tenth, and there are only tens of thousands of those who have successfully become a second-level civilization and walked out of the home planet, specifically about seventy or eighty thousand, the probability here is relatively high, mainly depends on the relatively small generation difference between the first-level civilization and the second-level civilization." ”

"But after stepping out of the home planet, it means that they have really stepped into the dark forest of the universe, and the vast majority of second-level civilizations will pay the price for their innocence, and even if they are careful, there is no guarantee that disasters will not fall from the sky, these seventy or eighty thousand second-level civilizations have been washed and truly become third-level civilizations, only about 10,000!"

"Theoretically, those who have the ability to visit the home planet of other civilizations are basically third-level civilizations rather than second-level civilizations, I think you can understand what I mean, right?"

Zhou Chen nodded, "Yes, although the second-level civilization can get out of the home planet, it is limited by the level of science and technology and cannot carry out a long interstellar journey. ”

"So, at the source, there are not many civilizations that really have the ability to interfere with the process of your civilization!" How big the universe is, and how few third-level civilizations are! ”

But that doesn't mean there isn't! The evolution of species takes hundreds of thousands, millions of years, and the slightest interruption in this will not give birth to advanced civilizations. ”

"Well, considering the long timeline, there is indeed a possibility." Gu Luo glanced at Zhou Chen appreciatively and asked rhetorically, "But why didn't this happen?" You can see that there are millions of primitive civilizations in the galaxy, how can they develop hundreds of thousands of first-level civilizations according to the laws of nature? ”

Zhou Chen shook his head, this was what he didn't understand.

Gu Luo sighed at this time and said: "This is the second point I want to say, the reason is actually very simple, because the dark forest is only for the rules of civilizations that have the ability to get out of the home planet, not for primitive civilizations!" ”

"As long as the civilization stage is still in the primitive civilization, the law of the dark forest cannot affect them, and the time span between the first-level civilization and the second-level civilization is small, so most of them can successfully develop to the second-level civilization! You understand this way, the real fight is actually mainly focused on the second-level civilization and the third-level civilization after leaving the home planet! ”

"Why is this happening?" The relatively weak primitive civilization can circumvent the law of the dark forest, but the more powerful second-level and third-level civilizations cannot, which violates the laws of nature, can it be said that ......

Zhou Chen reacted: "Could it be that there is another rule in the universe, they are protecting the primitive civilization?" ”

Guru nodded and said, "The law of the dark forest is based on the sociological products that cosmic civilizations may react to after encountering other civilizations, and it is an exclusive choice to seek self-preservation in the chain of mutual suspicion, which is in line with the law of survival. ”

"And the protection of weak primitive civilizations is obviously not a sociological consensus that all civilizations will give birth to, and they have no reason or obligation to take care of these weak civilizations!"

Zhou Chen suddenly had some realization: "So there is only one possibility for its appearance, there is a relatively powerful organization or civilization, and he overrides his will over other civilizations, so that other civilizations have to abide by the rules he has set to act!" ”

"This civilization or organization is very powerful, and all third-level civilizations have to act according to the rules he has set, is it the ruler of the entire galaxy?"

Guru smiled and nodded: "Not very accurate, but it's almost!" ”

"Is there really such a large and powerful civilization or organization?" Zhou Chen asked in surprise.

What a powerful super civilization to make the civilizations of the entire galaxy obey the rules they have set by themselves! Of course, Zhou Chen had to admit in his heart that it was precisely with the existence of such a civilization or organization that so many primitive civilizations were born in the galaxy.

"Such an organization does exist!" Gu Luo nodded affirmatively, "Anyway, your earth civilization is about to be promoted to a third-level civilization, and the existence of this organization is actually not a secret among third-level civilizations, so I'll tell you today!" ”

"I want to hear about it!" Zhou Chen became serious, this is probably the biggest secret of the galaxy, and he can only know it after reaching the third-level civilization!

"Pangalactic Interstellar Alliance! Abbreviated as Star Alliance! It is the maker of the rules of the galaxy's advanced civilizations! ”

"The rules formulated by the Star Alliance are very simple: first, you must not attack the primitive civilization, you must not interfere with the progress of the primitive civilization, and you must not occupy the planet that is already in the stage of giving birth to the primitive civilization, and any violation of any of the above will be punished by the Star Alliance!"

Three must not, highlighting the strength of the Pangalactic Interstellar Alliance.

Even a barbaric civilization as stubborn as the Ferro civilization would not dare to rashly make a move against the primitive civilization!

"Second, the Star Alliance issued an interstellar wanted warrant to hunt down those who violated the first article, and those who successfully killed the civilization on the wanted warrant will be rewarded with a fourth-level civilization technology!"

At this, a burning flash flashed in Gura's eyes, but it calmed down in an instant.

Yes! Zhou Chen was stunned, with the fourth-level civilization technology as a reward, this trick still doesn't make the third-level civilization in the universe rush to it? Zhou Chen had to admire the cleverness of this Star Alliance's methods, which was both a radish and a stick, and this radish instead boosted the power of its stick!

Gu Luo smiled and said, "Don't underestimate the attraction of fourth-level civilization technology to third-level civilizations, if you have the ability, it is also a good choice to specialize in the tasks on the wanted warrant." ”

Zhou Chen asked in surprise, "Could it be that this Star Alliance is all composed of fourth-level civilizations?" Why do I think that in their eyes, the technology of the fourth-level civilization is as worthless as fried beans? ”

Gu Luo shrugged his shoulders and said: "I don't know about this, anyway, this Star Alliance is very mysterious, and the internal composition is a mystery, not something we can figure out, but according to legend, as long as you reach the fourth-level civilization stage, you can receive an invitation from the Star Alliance, and I don't know if it's true or not." ”