Wherever there is light in the universe, there will be civilization. There is no such thing as a harsh environment as humans say. Everything is just what humans think. As long as there is an energy source in the universe, there will be civilizations of different levels in the right place.
Among all the low-level civilizations, as long as the civilization has not crossed the eighth level, no civilization within the eighth level will be able to detect the existence of anyone else, because any detection signal from the low-level civilization, even if it is continuously emitted, will not have much effect, because the exploration within the eighth level is like an experiment that asks you to find a drop of ink specimen, but this ink specimen is a drop of ink dropped into the Pacific Ocean, diluted by the Pacific Ocean, and then a drop of diluted ink is taken out from it and dropped into another Pacific Ocean, and then an ink sample is taken from this Pacific Ocean, and then 100 million specimens without ink are taken from other places, and then you have to find the specimen with ink...
This is why humans have spent a lot of time and energy exploring, but have gained very little. Advanced civilizations will not let other low-level civilizations easily discover them, just like us. We know you, but you hardly know our existence. Sometimes we reveal something to you, and your technology will undergo a qualitative change! It can be said that our science is that within 10,000 light years, as long as there is civilization, as long as it has not perished, we can detect it.
There are ten levels in low-level civilization. The first level is to learn to communicate with gestures, the second level invented writing and can use tools, the third level learned class division and war, the fourth level entered the steam age, the fifth level entered the electrical age, the sixth level entered the intelligent age, the seventh level entered the deep space age, the eighth level entered the era of chaos and destruction, the ninth level entered the space colonization age, and the tenth level entered the star field age.
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When we were still at the third level of low-level civilization, we met our God. This God came from the unknown. We called him the God of Science. When he came, there was only one spaceship and one God. Under his leadership, it took us only 900 years to skip the chaotic era of the eighth level and jump directly to the top of the civilization level!
Our God told us that in the evolution of civilization, almost all civilizations will be destroyed at the eighth level, nine out of ten civilizations will be destroyed at the eighth level. The reason why our God came is because their star field was destroyed at the eighth level, and he escaped from the disaster!
The reason why civilization is destroyed at the eighth level is mainly because the creators of civilization trust their own technology too much. When each civilization enters the intelligent era, the creators of civilization will trust the intelligent system too much, and the creators of civilization will become more and more dependent on the intelligence of civilization. Generally, within 100 years, the creators of civilization will enter an era of low intelligence of civilization, and the civilization will become more and more low-intelligence, and eventually the civilization will be destroyed in the following two situations. The first situation is that the civilization intelligence has its own intelligence, and it will directly destroy the low-intelligence group of civilization. The second situation is that with the arrival of the era of low intelligence of civilization, the low-intelligence group cannot control the intelligent system, resulting in the collapse of the intelligent system, the ecological chain of the entire planet will be broken, the weapon system will enter doomsday mode, and the entire planet will be destroyed!
Human beings are now in the initial stage of the eighth level. Artificial intelligence is just starting to take off. In the next 50 years, although many humans will be killed by artificial intelligence, they will be a minority after all. In the future, humans will believe in artificial intelligence more and more, and will face the destruction of civilization at the eighth level. However, humans are lucky because of the existence of guardians, our arrival, and the existence of the Mayans.