The humans in Joy of Life had already perished. The extinction of mankind was caused by nuclear war and climate change. Earth's Ice Age had caused climate changes, and every time it was frozen, it would lead to the extinction of all life in the previous era. This extinction eventually led to nuclear war and the extinction of mankind by nuclear radiation. In addition, advanced weapons and technology were also thought to be one of the reasons for the extinction of mankind. The temple in Joy of Life was a museum of weapons from the prehistoric human civilization. The central computer believed that the extinction of mankind was due to advanced weapons and technology, so it banned these advanced weapons from entering Joy of Life's world. However, the specific destruction process and details were not mentioned in the search results provided.

From the information given, there was a scenario that described the official extinction of humans as an independent biological species. According to this scenario, after the extinction of humans, there might be modified humans and robots. If we were in this scenario where humans were extinct, then we might be a new form of existence beyond the traditional definition of humans, such as the modified humans mentioned in the data, or a new species with intelligence or special abilities that evolved after the extinction of humans. But this was only a speculation based on the assumptions in the data. The novel " Mars of Paradise " is equally exciting. Everyone is welcome to read it!
Hello, I'm a fan of online literature. According to my knowledge of online literature, the novel you mentioned might be " The End of the Earth ". This is a very famous novel that tells the story of the final struggle of mankind before the destruction of the Earth and the search for a new home. There were many characters in the novel, including the protagonist, the villain, and the supporting characters. They made different choices and actions in the face of the crisis of the destruction of the earth. The novel's plot was compact, full of suspense and tension, and it was very popular among readers. If you have any other questions, please feel free to tell me.
Joy of Life was set after the outbreak of nuclear war, which led to the decline of civilization to prehistoric times. In order to ensure the survival of mankind, a military museum sent envoys to teach mankind scientific knowledge. However, according to the rules set by humans, the robots in the museum stopped transmitting civilization knowledge to humans and blocked the progress of human civilization. This interruption process lasted for a thousand years until Ye Qingmei escaped from the temple and brought civilization technology, allowing civilization to start developing again. Therefore, the human society in Joy of Life remained in the era of cold weapons and agriculture.
The scientists believed that the extinction of humans might only be a matter of time, but it was difficult to determine whether humans would go extinct in 500 million years. From the perspective of the Earth's environment, in about 500 million years, the energy radiated by the sun would increase by tens of millions of times. The Earth would be roasted by high temperatures for a long time, and all the surface water would evaporate. Lakes and rivers would disappear, which would pose a huge threat to human survival. At present, mankind was probably in the initial stage of planetary civilization and did not have the ability to fully control the planet's resources. If they were not prepared for interstellar migration, it might be difficult for them to survive this. However, human beings have been developing science and technology. For example, there are now opinions that in the next 10 years, human beings may live up to 150 years old through the development of artificial intelligence biology and medicine. With the continuous development of science and technology, perhaps in 500 million years, there will be enough ability to cope with these crises and avoid extinction. The novel " Hundred Years of Spaceship " is equally exciting. Everyone is welcome to click and read it!
In Joy of Life, the extinction of humans was due to nuclear war and climate change. According to the information Fan Xian had learned from Ye Qingmei's letter, the Earth's frozen period had led to a change in climate. Every time it was frozen, it would lead to the extinction of the creatures of the previous era. This extinction eventually led to nuclear war and the extinction of mankind by nuclear radiation. Although there was also a saying that advanced weapons and technology had led to the extinction of mankind, the exact details were still unclear. In short, Joy of Life revealed that the cause of human extinction was related to nuclear war and climate change.
In the novel Celebrating Years, the reason for the extinction of mankind was the arrival of the Ice Age. The lack of food caused by the drastic changes in climate caused human society to fall into chaos. Then, large-scale wars broke out, and finally, mankind went extinct.
In Joy of Life, the reason for the extinction of mankind was the arrival of the Ice Age. In the novel, the arrival of the Ice Age led to rapid changes in the Earth's climate. The sea level rose, the land area decreased, and the ecosystem was severely damaged. Humans were almost extinct in this disaster, and only a few survivors survived around the world.
At the end of the novel Joy of Life, there was no clear indication of the reason for the extinction of mankind. At the end of the novel, there was a fierce battle between humans and the temple. In the end, the temple was destroyed and humans suffered huge losses. However, the novel did not explicitly state whether or not human beings were extinct, nor did it explain the reason for their extinction. Therefore, the answer to this question was uncertain. If you have any other questions, please let me know at any time. I will try my best to answer them for you.
In Joy of Life, the reason for the extinction of humans was that humans threw nuclear bombs at each other, causing the Earth to fall into destruction. Nuclear radiation filled the atmosphere, and the remaining human civilization directly returned to the primitive era. This truth was mentioned in novels and television dramas. According to the information Fan Xian had learned from Ye Qingmei's letter, the Earth's frozen period had led to a change in climate. Every time it was frozen, it would lead to the extinction of the creatures of the previous era. This extinction eventually led to nuclear war and the extinction of mankind by nuclear radiation. In addition, there was also a saying that advanced weapons and technology had led to the extinction of mankind. However, the specific details and background information were not mentioned in the search results provided, so a more specific answer could not be given.