- It's more verbose, and you don't like logic and science fiction, so you don't have to read it, although this book doesn't often have chapters that look like it's more brain-consuming and eye-consuming, but I still hope that this book can be written as logically as smoothly as possible, and the setting is rigorous, not just upgrading the exercises, pretending to be slapping in the face. If you're very, very averse to similar texts, then all I can say is that this is just an experimental chapter, or maybe this book isn't quite for you...... Above.

Although Li Chenen has always regarded online writing as a very important entertainment pastime, he does not believe in the crossing itself.

An earthling, who has stumbled over more than ten years of science education, is understandable to be skeptical of things that cannot be verified. This is just like a rigorous scientist may identify with the "Law of the Dark Forest", and will feel the epic shocking scene of the "dimensionality reduction strike" and the loss and despair of the end of civilization. But if you discuss with him which of these is more true, he may tell you that he thinks that the "Great Silence", "Great Filtration" and "Great Stagnation" and other conjectures derived from the "Fermi Paradox" are the life and death problems that human civilization is about to face.

People only believe what they want to believe – a brilliant phrase that is apt to describe Litchenen, who once steadfastly denied crossing. But a good conclusion is often one-sided, and it often needs to be correct in certain circumstances, even though many of the specific conditions may seem like a given.

Why do people only believe what they want to believe? It's just because a lot of the information that leads to conclusions is indeterminate in the first place.

The establishment of the "Law of the Dark Forest" requires several uncertain premises - there must first be enough advanced civilizations in the universe that have mastered the ability of interstellar navigation and interstellar strikes, and it is difficult for them to find other "neighbors" nearby, and the distance between them is not unreachable compared to their interstellar navigation capabilities. Their interstellar strike capabilities must be precise and deadly, and only when the side that has the power to strike first has an overwhelming advantage, will these civilizations scramble to play the role of "shoot first" rather than "suffer last". Conversely, if the vast majority of civilizations do not have the power to make a final decision like the Earth in the novel, then it is more likely that they will be exposed to danger if they find each other in the dark forest and attack rashly. If there are enough "sheep" like Earth, and the civilization with the ability to reach the level of "beasts" and "hunters" is extremely rare, then the "beasts" are likely to choose to "wait in hiding" before attacking, and the "hunters" will hide in the shadows to weigh which behavior can bring more benefits to their needs.

But what is the universe like in reality?

The Fermi paradox asks the question very directly: since aliens exist, where are they, and where is the evidence?

When Litchenen was still studying, he was as interested as most young people in the days when print and television were at their most glorious, UFOs, crop circles, and the Loch Ness Monster. But they have gradually faded out of people's field of vision with the development of the times, and in the era when the Internet has just emerged, some people will occasionally mention that when everyone has a smart phone, the era of rapid development of self-media has gradually disappeared.

In Litchenen's view, if those things are not just a fabrication, then as technology becomes more and more developed, there should be more and more similar discoveries and clues, but the truth is just the opposite. Of course, no one can be 100% sure if the monster has died, escaped from Loch Ness, or been transported away, whether the aliens have traveled elsewhere, whether there is a pact with the Pan American Federation, whether the traces have been covered up, or something else has happened.

In Richen's impression, it is said that there are estimated 1 million ~ 10 million terrestrial planets in the light galaxy that may be suitable for life, and the life span of the Milky Way is estimated to be as long as 10 billion years. With such a huge base, it seems very unreasonable to say that there are no other civilizations in the entire universe. However, since there are countless possibilities for extraterrestrial life and civilization, why is there no conclusive evidence of the existence of extraterrestrial civilizations recognized by the world? Why has the earth not found any definite information left by extraterrestrial civilizations? Obviously, our satellite television signals have the possibility of spanning several tens of light-years! Could it be that the information of aliens has only been concealed by the Pan American Federation and the Tsarist Russian Empire? They have even found out the scandal of the country's leaders by hackers, and do they really have the power to cover the sky in such matters?

As long as there was ever a higher civilization in the galaxy, even if only one of them had developed a mature interstellar navigation capability, they could be like a virus to spread their footprints all over the galaxy in the billions of years of history! Or they didn't need a mature interstellar manned navigation capability, as long as they created some kind of interstellar probe that could replicate itself, the galaxy should not be as dead as it is now.

Maybe we can't detect and analyze the communication signals used by aliens at all, or maybe the earth has long been set up by advanced civilizations as some kind of isolation sanctuary for natural development?

What if there is no so-called news blockade and quarantine zone? Are they just as longing as we are, and at the same time afraid of neighbors who can communicate, but because of the moat of the sea of stars, they can only look forward and sigh? But with the development of time, this moat should be gradually overcome by all civilizations, and isn't ten billion years of time enough for a civilization to cross it and trample it under its feet? Not counting the flesh-and-blood foundation laid by genetic evolution, the history of human invention and use of words can be verified less than 10,000 years, the establishment of classical mechanics is less than 400 years now, and the theory of relativity has made a new supplement to classical mechanics more than 200 years later, and quantum mechanics has been born out of thin air. How far is interstellar travel from us? Since interstellar travel is "just around the corner," why has there been no extraterrestrial civilization in the 10 billion years of the galaxy that has left traces that can be detected by human beings? Is it because our ability is limited that we can't find them, or is it because the 10 billion-year-old galaxy has only recently metamorphosed into a "civilization garden" that is gentle enough to give birth to advanced life?

Archaeologists tell us that the Earth did experience a mass extinction 200 million years ago, and then the Earth was taken over by dinosaurs, until more than 60 million years ago, when the dinosaurs became extinct and birds and mammals began to dominate the land. How much time will human beings have to stand out from the mammals? Maybe we don't have tens of millions or hundreds of millions of years, after all, human activities have already profoundly affected the environment and ecology of the earth, but human beings have also left indelible traces on the earth, and we even have the ability to "force" asteroids and meteorites that may visit the earth to "divert". Even if humanity fails to start an interstellar migration journey before the "end times" and fails to avoid biological extinction, at least it can leave some gifts and legacies for its successors. What's more, according to the current law of human science and technology development, large-scale interstellar travel may not need to wait for tens of millions of years, and most researchers are seizing the day!

But since human beings seem to have the ability to have the opportunity to open the Star Sea Age, then other civilizations in the universe should have equal or similar opportunities, more or less. They don't need to start at the same time as the dinosaur age on Earth, as long as they are tens of millions of years earlier than humans, they will have the opportunity to "light up" a certain area in the galaxy and send out the cry of civilization in the sea of stars!

But the Earth does not seem to have received a similar message. So is there something that restricts the development of civilization in the dark? An obstacle that all intelligent civilizations cannot cross that restricts the journey of the stars to which flesh and blood, even silicon-based, mechanical, and even unknown life yearns!? A rule or some human beings still have not discovered or even paid attention to restraining the pace of all civilizations? As a result, all the wisdom of the entire galaxy has not succeeded in taking this step? So that the universe will show such a dead silence?

Is there such a constraint that pervades the entire universe? Is it some kind of insurmountable obstacle, periodic natural disaster, ecocide, or bottleneck in technological development?

If there is no such obstacle, then why do humans seem so lonely in the galaxy?

Are they all quietly lurking because of the laws of the dark forest or something? Always on the lookout for possible enemies? Are all civilizations in the galaxy like this? But at least not on Earth, human beings have been actively or passively sending all kinds of signals to the outside world. If it is true, as described in the Three-Body Problem, are extraterrestrial civilizations ready or even already taking the pace of aggression? Or are there far more than one or two civilizations around the solar system quietly staring at this beautiful blue planet? None of them dare to take the lead and guard against the yellow finches behind? Or even that they have reached some kind of agreement with each other to isolate a protected area for human development?

This brings us back to the original topic, since there are so many laws and vague information in the universe that are difficult for people to determine, people can only believe what they want to believe based on their own experience, preferences, or feelings.

Maybe in a few years there will be an alien civilization officially visiting the earth, maybe in a few hundred years human beings will embark on an interstellar journey, maybe when humanity encounters a major dilemma, there will be a higher civilization outside the protected area to show us the path that symbolizes hope, as envisioned in Interstellar, maybe it is a wormhole, or maybe it is just an antimatter or curvature engine blueprint or something.

Based on the information about the universe that has been discovered by human beings, we have long concluded that there must be extraterrestrial life. However, the Fermi paradox proposes that since there is extraterrestrial life, we have not really seen it, and there is no definite evidence, which leads to a series of speculations such as the Great Silence, the Isolation Theory, the Great Filtration (natural disasters, bondage, etc.), the Great Stagnation (technology), the Milky Way has just begun to give birth to higher life, and the laws of the dark forest.

If we follow the logic of detective novels, it is naturally a more scientific way of thinking to consider all the possibilities of an uncertain thing as much as possible, after all, detective novels are often faced with human life. But for ordinary people, a thing that has little impact on them but is uncertain, it is too cumbersome and too brain-consuming to think according to this line of thinking, so believing in what you are willing to believe in is the most relaxed, efficient, and "energy-saving and environmentally friendly" choice.

- For Litchenen now, the concept of crossing is being stripped from the logical wall of "impossibility" by the facts he has experienced, and it has become crumbling, and he may fall into the unknown abyss with infinite possibilities at any time.

PS:I don't know how many people have read this chapter carefully and understood it.,To be honest, it's difficult to maintain the logical rigor from beginning to end in the online text mode of relying on personal accumulation to maintain serialization.,Many of the "masterpieces" with whimsical details have been repeatedly crafted before they were born, and even added the wisdom of many people. This is not the strength of online articles, relatively speaking, unreasonable settings such as thunder and electric car accidents are easier to write, and readers don't need to bother to read and understand, but when the repeated routines become more and more boring, I still hope that there will be some relatively rigorous, fresh things that can make our eyes shine, rather than simply adding a variety of unintelligible settings, even if they look very tall, powerful, gorgeous. Take the example used earlier - although the law of the dark forest also sets certain premises, but these premises and settings are very close to the real universe that people know, so it makes people feel very real and credible, even if you say that it is the universal truth in the universe, it is difficult to have any decisive and conclusive basis to refute and deny it; In layman's terms, the law of the dark forest is similar to the logically rigorous hardcore sci-fi (watching the movie does not require a high basic threshold of sci-fi, and it is a logical deduction that is easy for readers who don't read sci-fi to understand), and the dimensionality reduction strike is more inclined to popcorn blockbusters like sci-fi.

Of course, liking hardcore sci-fi more than popcorn blockbusters is just my personal likes and dislikes, and it can't represent most of the needs of the online text market. But this does not mean that niche demand must also bow to market big data on individual works.

Even if my ability is far from enough to support me to complete such a book that I aspire to.