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After a long time, the squad leader Yu Jiawei finally hurriedly pushed the door and ran in, looking tired and sweaty, panting and saying to everyone: "Teacher Fu has an urgent matter at home, this class is self-studying, everyone can do anything, you must be quiet, you can't speak loudly." ”

"Oh, I'm not right, it's not self-study yet." The classmate guessed correctly, looked very proud, and whispered.

At this time, several classmates had already crossed their seats, talking to each other and whispering something.

Ami happened to be thinking about something that he couldn't figure out, and naturally thought of it again.

"Ami, what's the matter with me?" The hand of wisdom fluttered and appeared in front of Ami's eyes.

"I want to know how people came to be?" Ami asked.

"Man evolved from the animal race." Hand said.

"Didn't you say that the universe exploded? How did man evolve? Ami asked.

"From the formation of the universe to the formation of human beings, there are n billion years, and in these billion years, with continuous explosions, new things and phenomena are constantly generated, and gravity is one of them. Because of the gravitational force, magnetic fields are generated between each object, so the time and scale of the explosion are limited to a certain extent. As a result, some galaxies in the universe are relatively stable. Countless small particles formed a stable collection of all sorts of things, and it was not until n billion years ago that living things appeared. The hand said.

Ami nodded slightly, it turns out that everything is constantly changing and updating, and human beings are naturally the product of it.

Seeing Ami nodding, he continued: "The earth is a planet in the solar system, and the solar system is a star system in the Milky Way, and the Milky Way includes hundreds of billions of stars and a large number of star clusters, nebulae, as well as various types of interstellar gas and interstellar dust. The Milky Way is an insignificant space-time in the universe, and the universe is constantly expanding, so in the universe, as long as you can think of anything, it should exist. N billion years ago, countless particles gathered together due to the effect of gravity, they constantly collided, combined and separated, and changed over and over again, forming the most primitive earth. At that time, there was no water or air on the earth, just a huge cloud of sand and dust. ”

Ami listened curiously.

"After n billion years of change, the earth was covered by seawater, and organisms began to appear in the oceans, and after another billion years, these organisms changed to form various different types of organisms. In that year, the core of the earth was fissioned, and some places on the surface of the earth rose high, and some became deep pits, so the land appeared, and slowly life appeared on the land, and the ancestors of human beings naturally appeared in this way, and before and after the formation of human beings, there were other worlds on the earth. The hand said.

"Why are humans able to rule this earth?" Ami asked.

"Survival of the fittest, survival of the fittest, this is the eternal law in the universe. Because human beings have the fastest intelligent development among all kinds of creatures, they quickly mastered the use of tools, and human beings used tools to finally conquer other creatures after years of struggle, so they were able to rule the earth, if not, maybe human beings have long been extinct on the earth or ruled by other creatures. The hand said.

"When did humans really become human?" Ami asked.

"Human scientists think that it is when humans begin to walk upright that they are called real people, but in fact, they are not, they really become human beings when they begin to have dreams, because of dreams, human intelligence begins to be developed, and gradually detached from ordinary animal groups." Hand said.

"Do animals dream now?" Ami asked.

"Many kinds of animals nowadays dream, but their dreams are similar to those of primitive human beings, basically without thoughts, only images and sounds, unless—" The hand paused as he spoke.

Ami was listening, and with a blank look, he thought to himself how you have learned the stinky problem with humans, and you have begun to sell guanzi.

"Unless they are creatures that have been in contact with humans for a long time, they will also have the same dreams as modern humans through learning and sensing." Hand said with a smile.

"Are you talking about puppies? And kittens? Ami was interested and asked happily.

"There are them, but there are also creatures on the surface of the human body and parasitic creatures inside the body." After saying that, Ami almost screamed in fright. Because she remembered the terrible virus in the human body, it seemed that the most fatal opponent of human beings was indeed the virus and bacteria that had been lurking in the human body for a long time. Will they be able to dream too, and will they be able to open the door of their dreams?

"Because they don't generally have the thinking abilities that humans have, they don't usually dream, and I'm talking about some parasites." Hand said.

Ami couldn't help but think of the rampaging big black dog that appeared in the magic world, if it wasn't for Li Xinying's action, the magic world didn't know how many lives would have to be sacrificed. Thinking of the terrifying zombies in the movie, as well as the SARS virus that appeared on the earth a few years ago and caused global panic, thinking of these, Ami felt that he should make some preparations to prevent the disaster on the earth?

"Ami, you are kind-hearted and peace-loving, which is a blessing for mankind in your time. In the past, there were great disasters and massacres in human beings, in fact, they are closely related to the characters who opened the door of dreams, ordinary human beings have created an extraordinary world, but only a few special people can destroy this world to a thousand holes, and there will be no recovery. Ami, you understand your mission. "The hand speaks slowly.

Ami listened intently, and suddenly felt that she was no longer a ten-year-old weak little girl, and what she had to face bravely was the entire human race, the entire earth. Ami knows that since he has opened the door of wisdom, his fate should change from now on, and he will not be able to live as comfortably as before, because there are more things to solve by himself, and he will have to face more dangers in the future, and he should start preparing how to deal with it now.

"What will be humanity's greatest enemy in the future?" Ami thought for a moment and asked the Hand of Wisdom.

"The biggest enemy of mankind at present is human beings themselves, and there are many enemies in the future, which are also unpredictable." Hand said.

"How can the enemy of humanity be humanity itself?" Ami asked.

"There is an idiom in China called playing with fire*. There are already many super scientists on the earth, they are trying all kinds of dangerous experiments, if there is a special situation, the situation is not controlled, human beings are about to disappear from the earth forever. The hand said.

At this time, Ami's heart felt as if it had been hit by something, and she couldn't help but be surprised.

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