What does' The Three Body Problem 'talk about?

I heard the name of "The Three Body Problem" a long time ago, and out of admiration and curiosity, I bought three books about "The Three Body Problem". However, because there were too many books and things, I didn't read them. Under the influence of the epidemic, I finally finished watching "The Three Body Problem" in one breath recently. For me, who is at most half a science fiction fan, it is really shocking. I believe many friends want to watch 'The Three Body Problem', but they haven't watched it for various reasons. Here, I will superficially tell you a story about the Three Body Problem, Three Body Problem, and Three Books.

1、 Three Body 1

Ye Wenjie

In the 1960s, Ye (a student at Tsinghua University)'s father (a physics authority) was persecuted. Ye witnessed his mother accusing his father of alleged crimes and witnessed his father being beaten to death by students. From then on, Ye went to the Greater Khingan Range and became a lumberjack. During this period, he was almost killed by a friend who accused him of reading "banned books". Finally, because her expertise in astronomy saved her life, she was admitted to the military's "Red Bank Base" and her life underwent a dramatic change.

As Ye's work continued, he discovered that the true mission of Hong'an Base was to explore extraterrestrial civilizations. But at that time, human technology was still very backward, and the maximum power radio waves emitted by the instrument were like mosquito calls in the universe, with almost no possibility of being heard. By chance, Ye discovered that the sun has the function of amplifying high-frequency radio signals. In this way, the sun can become a trumpet for humans to speak to the universe, amplifying the radio waves emitted by the earth hundreds of millions of times with the energy of the sun itself. So, she conducted an experiment and the radio waves were instantly amplified by the sun and spread to all directions of the universe

One day eight years later, Ye, who was on duty, suddenly received a strong reply signal. Translated into Chinese characters, it means four repeated warnings: Do not answer! Faced with Ye's warning, Wenjie (because he was very disappointed with human civilization) replied, 'Come here, I will help you gain the world.'. My civilization is unable to solve its own problems and requires your intervention. (By analyzing the time between transmission and reception, Ye Wenjie calculated that the signal came from the Alpha Centauri galaxy, which is 4 light-years away.)

Wang Miao

At the same time, there have been terrifying tragedies in the scientific community. Several top physicists have mysteriously committed suicide, becoming the focus of military attention. Due to frequent suicide incidents in the scientific community, Wang Miao (an ordinary scientist studying nanomaterials) promised to cooperate with the military and a police officer named Shi Qiang to investigate the cause of the scientist's death.

A strange thing happened to Wang Miao, who is a photography enthusiast. He found that all the photos he took suddenly displayed a "countdown" number, which made Wang Miao panic. When observing the starry sky with astronomical equipment at work, I also saw the countdown flashing in the form of microwave background radiation in the vast expanse of the sky. This almost miraculous warning left Wang Miao feeling hopeless.

6. Shi Qiang is worried about Wang Miao's suicide and suggests that Wang Miao play a VR game: Three Body Game

Later, Wang Miao discovered that the Three Body Game was intentionally created by an organization. The purpose of this organization is to identify those who are extremely disappointed with human civilization. Wang Miao concealed his true thoughts and joined this organization, only to discover that Ye Wenjie was the leader of the organization; The Three Body Game is not just a game, it simulates the real situation of the Alpha Centauri Samsung extraterrestrial civilization. After the end of the Cultural Revolution, Ye returned to Tsinghua University to teach. With the help of friends, she established the Three Body Organization and planned the Three Body Game

8. The Trisolaran organization maintains contact with the Trisolaran world, and this contact information is stored on a hard drive of the Trisolaran organization. Understanding the connection between Earth and the Three Body Problem is crucial for human survival. In order to obtain this important hard drive and eliminate the Three Body Organization, Shi Qiang proposed using a "flying blade (high-strength nanowire)" to cut the spacecraft with the Three Body Organization. Afterwards, the Trisolaran organization was destroyed, and Wang Miao obtained well preserved information about the Trisolaran civilization.

9. Information: Because the technology of the Three Body Problem is developing at a constant speed, the Earth is accelerating its development. It takes 400 years for a spacecraft departing from the Three Body Problem to reach Earth. By then, the level of human technology on Earth may have already surpassed the Three Body Problem. At that time, the Three Body Problem did not usher in conquest, but destruction. In order to destroy the belief of humans in technology on Earth and hinder its development, the Trisolarans launched two "wise sons" to Earth with technology that surpasses human civilization. They can not only supervise the Earth, but also influence the results of all human physics experiments, causing the collapse of human scientists' faith in physics and technology. Through these materials, the countdown and mystery of scientist suicide that Wang Miao saw were also solved one by one.

Tomoko Ogawa

Three Body Problem 2: Dark Forest

Humanity realizes that it is currently facing the greatest crisis in history: in 400 years, the Trisolaran civilization will arrive on Earth and turn it into an alien colony. So, a new era began for all mankind: the era of crisis. In this context, humans have proposed two self rescue plans: the Wallfacer Program and the establishment of a space army.

Side Wall Plan

The thinking of Trisolarans is transparent and they do not hide their thoughts, which means they do not lie or know some strategies or techniques. This means that although the Trisolarans can supervise everything on Earth through their intelligence, they cannot see through human thought. So, the "Face the Wall Plan" was born: selecting outstanding people from human society, allowing them to formulate strategies entirely based on their own thinking, keeping the true strategic ideas, steps to be completed, and ultimate goals in their minds, and not telling anyone; To the outside world, the thoughts and behaviors exhibited by those who face the wall should be completely false, carefully planned disguises, misleading and deceiving.

For this reason, the United Nations selected four individuals as wallfacers. In order to deal with the Wallfacer Plan, the remaining forces of the Three Body Organization on Earth have also chosen the "Wallfacer" to deal with the Wallfacer. Among the four wallfacers, three failed one after another, leaving only Luo Ji. Actually, Luo Ji didn't do anything except enjoy life to the fullest. In the end, the United Nations could no longer bear it and took away his wife and children. It also revealed the true reason why he was chosen as the "Faceman": Luo Ji was the only person in all of humanity who was explicitly ordered to be eliminated by the Trisolarans. And Luo Ji must identify his true threat to the Trisolaran civilization in order to see his wife and children.

At this moment, the words "cosmic sociology" suddenly flashed into Luo Ji's mind, which Ye Wenjie had told him back then. There are two axioms: survival is the first necessity of civilization; Civilization continues to develop and grow, while the total amount of matter in the universe remains unchanged. Based on these two sentences, Luo Ji looked up at the stars countless times, pondered day and night, and finally understood the "Dark Forest Law of the Universe": the universe is like a dark forest, and every civilization is a hunter holding a gun. Every hunter must be careful and hide like a ghost, because there are hunters like him sneaking around in the forest. If he finds someone else, there is only one thing he can do: shoot them out. In this forest, others are hell, and anyone who exposes themselves will soon be eliminated. (To avoid excessive length, friends who are unsure can search on their own)

To verify the Dark Forest Law, Luo Ji used the signal amplification function of the Sun to broadcast the coordinates of a planet located 50 light-years away from Earth. If the Dark Forest theory really holds, then this planet is highly likely to be destroyed by other civilizations. After the broadcast announcement, Luo Ji entered a dormant state, waiting for the planet to be attacked before waking him up.

Establish a Space Force

At the beginning of the crisis era, the world turned to a wartime economic system and fully developed space military. This led to the Great Depression for human civilization Around the 100th year of the crisis era, the Great Depression ended and it took humanity 20 years to achieve the revival of human civilization.

Over the years, the Space Force's plans have developed rapidly. By the 200th year of the crisis era, humanity had established a massive space fleet.

7. Humans have detected a "water droplet" shaped spacecraft gradually approaching Earth. So humans also began the scientific achievements of these years. Two thousand space warships set sail from Jupiter's base, heading towards space in a grand manner to welcome the arrival of "water droplets". As a result, relying solely on the "impact" of "water droplets", almost all of the two thousand spacecrafts were destroyed, with only a few escaping. On the fleeing warship, the existing resources were insufficient to sustain everyone's life, so the warships began to attack each other. In the end, 'Blue Space' became the ultimate winner. It collected and integrated all the materials, heading towards the dark and unknown universe.

Just when people were desperate, they discovered that the Milky Way, located 50 light-years away and with coordinates announced by Luo Ji, had been destroyed by unknown forces. This proved that Luo Ji's theory was correct, so Luo Ji awakened. Finally, Luo Ji used the Dark Forest principle to threaten the Trisolaran civilization: if the Trisolarans do not stop attacking, humans will release a space broadcast and expose the galactic coordinates of the Trisolarans and Earth, both of whom will perish together.

From then on, human civilization and the Trisolaran civilization entered a state of deterrence and confrontation. Human history has entered a new era: the era of deterrence.

Three Body Problem 3: Death and Eternal Life

This is one of the three books in the Three Body series, which is both hard science fiction and exciting. The protagonist of this book is Cheng Xin, a young female scientist.

1. Cheng Xin and Thomas Wilder hope to launch probes into the Three Body Fleet and monitor it. But the speed of the Trisolaran fleet was one percent of the speed of light, while at that time, human speed was only one ten thousandth of the speed of light. To solve this problem, Cheng Xin proposed to make the detector into a space sailboat equipped with a radiation sail, using the radiation generated by nuclear explosions to drive the radiation sail and accelerate the detector to one percent of the speed of light. But in order to achieve the ideal speed of the radiation sail, it can only carry objects weighing half a kilogram, and high-tech detectors cannot be placed on it. Finally, Vinda proposed the idea of "sending brains".

At this moment, I learned that my classmate Yun was about to be euthanized. Yun, who has a background in science and engineering and suffers from a terminal illness, has become the ideal brain for flying into space in the eyes of Wade. Faced with the request, Yun finally agreed (note: Yun Shangxue fell in love with him and before deciding to euthanize, he spent three million yuan to buy stars in the sky and anonymously gave them to him).

In order to preserve the human resources for this research, Cheng Xin was put into hibernation.

After completing the deterrence of the Trisolarans, Luo Ji established a relatively stable connection between humanity and the Trisolaran world: the Trisolaran civilization imported a large amount of advanced science and technology into humanity, and also lifted the technological blockade of geophysics imposed by "Naoko", leading to the rapid development of Earth civilization; Human beings have transmitted a lot of cultural content to the Trisolaran civilization, such as novels, poetry, movies, and so on. Over time, humanity's perception of the "Trisolarans" has changed, no longer seeing them as cold-blooded invaders, but as sympathetic neighbors living in cruel environments. In this era, Luo Ji is no longer accepted as a "swordsman" (someone who holds a button to activate the broadcast of the coordinates of the Three Body Galaxy), because his role is like that of a military general with heavy troops during peacetime, which makes people feel dangerous. So people decided to switch to a swordsman, and Cheng Xin, who had just woken up from hibernation, was selected as the swordsman to deter the Three Body Problem.

4. Cheng Xin becoming a swordsman means that humans have lost their deterrent power against the Trisolaran system. Just as Cheng Xin became the swordsman, the "water droplet" of the Trisolarans flew towards Earth at full speed, destroying the gravitational wave emitter on Earth (the button guarded by the swordsman). The system of checks and balances established during the Dark Ages has come to a complete end. At the same time, humans have discovered that the Trisolarans have developed a light speed spacecraft, which means that the Trisolarans can reach Earth in just four years. And the gentle and beautiful Naoko on Earth has also become the authoritarian ruler of the Trisolarans on Earth

At this time, Earthlings actually have a chance to turn over, because humans have inadvertently preserved a power, which is the spacecraft's "universal gravitation". It has been on a mission to hunt down fugitives (blue space). Just as gravity was about to catch up with blue space, news came that the Earth was ruled by a three body system. The two spacecraft have decided to temporarily unite with the outside world and have unanimously passed the decision to launch a broadcast into space, summoning a dark forest strike against the Three Body World. After the broadcast, the Trisolarans gave up their rule over Earth, and humanity was temporarily saved as a result.

6.4 years later, humans observed a light particle hitting a star in the Trisolaran galaxy, and thus the Trisolaran civilization was destroyed. The destruction of the Three Body Problem also foreshadows the danger of the solar system. (Addendum: Naoko, who was preparing to escape from Earth, told Cheng Xin that Yuntianming had been resurrected by the Trisolaran Fleet and wanted to see Cheng Xin. Yuntianming gave Earth a self rescue plan through a fairy tale: the Lightspeed Spaceship Project.)

At this point, Cheng Xin was already the president of a large technology company, and she demanded that Wade lead the company to fully research the light speed spacecraft. In addition, humans have also prepared a second self rescue plan: the bunker plan. That is to say, building a space city behind giant planets such as Jupiter and Saturn in the solar system, and using these giant planets as bunkers against the dark forest. When Wade was immersed in research, Cheng Xin once again chose hibernation.

Decades later, when Cheng Xin was awakened again, the bunker plan had been basically realized, and humans had migrated from Earth to Spacecity. However, in the research process of constructing curved light speed spacecraft based on cloud suggestions, it was found that light speed flight would leave traces in space and more thoroughly expose the solar system and Earth. In the end, Cheng Xin chose the cover plan and abandoned the light speed spaceship plan. Afterwards, Cheng Xin hibernated again, waiting for the arrival of the Dark Forest attack.

But this blow hasn't come for a long time. All that comes is a small piece of paper (double-sided foil) drifting into the solar system. It was this small piece of paper that launched a devastating blow to the entire solar system: a dimensionality reduction strike. That is to say, the entire solar system begins to descend from three dimensions to two dimensions, gradually becoming a two-dimensional blueprint. As space gradually falls into a two-dimensional plane, the space city planned to be built by the bunker is not spared. There is only one way to escape the fate of falling from a two-dimensional plane and fly out of the solar system at the speed of light. (Originally, the Lightspeed Spaceship project had been halted, but in reality it did not. After Wade's death, his followers were secretly researching, and in the end, they actually developed one.). At the critical moment, Cheng Xin boarded the spaceship and headed towards the star DX3906 that she had agreed with Yun (the star given by Yun). At this point, our solar system is already two-dimensional and devoid of life.

With the destruction of the solar system, two spacecrafts, Gravity and Blue Space, discovered "four-dimensional space..." As time passed, the two spacecrafts successively established their own colonies in the time and space after the destruction of the solar system, continuing human civilization. They are more advanced in technology than humans in the solar system and have a better understanding of the truth about the universe. When they observed the only human spacecraft flying towards DX3906 at the speed of light, Blue Space crew member Guan Yifan was ordered to wait for Cheng Xin's arrival on DX3906. During the conversation with Guan Yifan, Cheng Xin finally learned the reason why the solar system experienced dimensionality reduction Guan Yifan also told Cheng Xin that there was a pastoral era (10 dimensional world) in the universe a long time ago, and the universe was constantly becoming more dimensional and slowly disappearing. However, there is a group of mysterious Zeroers in the universe who are committed to restarting the universe, preparing to erupt again when the dimension of the universe is reduced to zero, bringing the universe back to the pastoral era of ten dimensions.

Cheng Xin agreed to Tian Ming's opinion before the meeting ended. But they found that Yun Tianming had left them a small universe here. The time of the small universe is different from that of the big universe. Cheng Xin and Guan Yifan began a peaceful life in the small universe. Until one day, I received a broadcast that the big universe was zeroed out, demanding that all small universes return matter to the big universe (so that the big universe could complete a reboot). The two decided to return everything in the little universe, but Cheng Xin looked at the empty little universe with great sadness. Finally, he placed an ecological sphere symbolizing life in the small universe, hoping that the big universe could ignore the tiny error of five kilograms, successfully restart, and return to the pastoral era

The main (approximate) content of the Three Body series stories mentioned above is these. The truly exciting content, such as the author's thinking, imagination, etc., I did not express it due to limited space. Friends interested in science fiction can read books by themselves.