700 years later

Dou Yu has been crying for an hour.

K999 tried to tell Dou Yu the process of discovering Cheng Zhang, but he couldn't listen at all. K999 took Cheng Zhang over, trying to convince Dou Yu that seeing is believing.

"Look, he is of yellow race just like you. This is his medical examination report, which can prove that he has a human blood circulation system..." K999 is still explaining to Dou Yu.

Dou Yu had raised his arms to block his ears: "It's obviously a bionic robot disguised as a human, you should send it to be destroyed immediately according to the regulations."

"He has a name." K999 finally said.

"What?" Dou Yu finally responded.

"He has a name, not a number like ours." K999 said, "His name is Cheng Zhang. We scanned his information and compared the database. We can confirm that he is the same as a human named Cheng Zhang 700 years ago." personal."

Cheng Zhang didn't know when he had been scanned and compared, K999 looked very calm, Cheng Zhang asked: "Then how did I come here?"

"Is that important?" K999 still had his standard smile, "The important thing is that you are now friends, the only two human beings left in the world, and the closest relatives."

Worse, as soon as K999 finished speaking, Cheng Zhang knew there was trouble, and then, as expected, he heard Dou Yu's scream: "He is not my friend! He is not human! I am..."

The last human beings in the world.Cheng Zhang helped Dou Yu make it up in his heart.

K999 has never encountered such a situation, and he even apologized to Cheng Zhang: "I'm sorry, he is not like this usually."

What's wrong with Dou Yu, he has always been very good. K999 always sees Dou Yu squatting in the corner melancholy, and says to K999: "K999, I am the last human being in the world, I am so lonely."

Until this moment, K999 thought it would be a great surprise to help Dou Yu find a companion.He didn't understand why Dou Yu was so unacceptable.

Cheng Zhang saw that K999 was still trying to prove to Dou Yu that Cheng Zhang was really a human being: "Go and touch his chest, his heart beats fast."

Touch a fart!Cheng Zhang really had a terrible headache, and Dou Yu was sitting on the edge of the bed, holding his legs, looking at him.

The strong desire to survive made Cheng Zhang get goose bumps on his arms, and he finally realized his dangerous situation.Of course Cheng Zhang doesn't understand the future world, but he understands people.Dou Yu is now like a spoiled only child, or an enlarged version. Not only is he the only child in the whole family, but he is the only human being in the whole world.Now all of a sudden, the parents came to tell him that when you were playing with toys, we had already had a second child, be happy!

Terrible, how many social incidents happen like this.

"Don't tell him any more." Cheng Zhang stood next to K999 and said in a low voice, "Let me do it. Let humans solve our human affairs."

May I? K999 stopped his persuasion and looked at Cheng Zhang.

"Trust me." Cheng Zhang patted K999 on the shoulder and comforted him.

K999 finally backed out.

There were only the two of them left, and the sound of heavy breathing in the room became clearer.Dou Yu became more panicked and didn't know where to run, so he huddled himself into a ball even harder, trying to make Cheng Zhang ignore him.

Cheng Zhang didn't want to face the reality even more than Dou Yu, but avoiding it wouldn't solve the problem, and he didn't want to be stabbed to death by Dou Yu in his sleep one day.This is a danger visible to the naked eye. After all, only in this way can Dou Yu turn back into the last human being in the world.

Cheng Zhang walked over, sat by the bed, and talked to Dou Yu as gently as possible: "Don't be sad, K999 made a mistake."

"I'm not human." Cheng Zhang said.

Cheng Zhang felt that he should be sad. He actually wanted to say to a homosexual that I am not human. He never thought in his life that he could say the standard line of this kind of scumbag confession. belly.But Cheng Zhang knows what human beings are good at, and deception is just a homework they are born with full marks.

Dou Yu really made a move: "Really?!"

"I'm just a robot imitating human beings, using that Cheng Zhang's face, which is so realistic that I even fooled K999." Cheng Zhang frantically made up nonsense, "You are indeed the last human being in the world. .”

"I knew it!" Dou Yu raised his head and finally regained his spirit, "Of course the only human being in the world is me!"

"Yes, yes, yes." How Cheng Zhang coaxed students to do their homework when he was a tutor in the past, now he is perfunctory to Dou Yu.You are you, you are electricity and light is the only myth.

"Then..." Dou Yu actually had other questions, "What type of robot are you?"

Now it was Cheng Zhang's turn to be stupid.

You don't need to set it in such detail, do you?

"Is it for medical use? Or for rescue at high-risk disaster sites? Or for difficult operations underwater? Or for spraying pesticides? For building houses?" Dou Yu counted on his fingers, "Or a sex/love robot ?”

Seeing Dou Yu's uncontrollable smile, Cheng Zhang felt that he knew what this guy was thinking.

Dou Yu is taking revenge, definitely revenge!

He didn't have any kindness for Cheng Zhang to reunite with his compatriots. Since Cheng Zhang made up a lie, Dou Yu had to dig deeper.You say you are a robot, you have to work anyway.No matter what type Cheng Zhang chooses for himself, he is destined to play his own "role".

Cheng Zhang neither knows how to practice medicine, nor does he know how to rescue, nor does he have superpowers to implement those complicated operations, and of course, he is not used to meet some indescribable needs.Cheng Zhang recalled his poor knowledge of science and technology, listening to Dou Yu's urging for answers, a thread suddenly appeared in his confused mind.

He knew what to say.

"I am..." Cheng Zhang said slowly.

Dou Yu, who had recovered his mood, stared at Cheng Zhang with full expectation.

"Actually, I am a sweeping robot." Cheng Zhang said.

This is the easiest job Cheng Zhang can think of as a robot.

Thank you for the sweeping robot at home that has returned to heaven, God bless you, Amen.

Dou Yu's jaw dropped.

"Sweeping the floor?" Dou Yu couldn't accept that Cheng Zhang could be so shameless, even if it was a lie they all knew - K999 would never make mistakes, and would not use such things to lie to him, Cheng Zhang would at least lie Write a little lie!

"That's right." Cheng Zhang said, "No one stipulates that sweeping robots can't be humanoid."

Dou Yu was so angry that he threw the paper he had just wiped his tears on the ground: "Then scan one for me to see!"

"Yes. But what about the broom?" Cheng Zhang asked.

"You still need a broom to sweep the floor, so what's the point of inventing your sweeping robot?!" Dou Yu was on the verge of collapse again.

"The difference is that you don't have to sweep the floor anymore." Cheng Zhang patiently explained to Dou Yu, "Also, the only human in the world, even if I am a sweeping robot, you can't litter."

Even in the 28th century, human beings probably still have to abide by public morality.

Dou Yu silently picked up the paper.He suddenly realized that he was now the weak side.

Cheng Zhang was talking nonsense, but Dou Yu had to accept his nonsense explanation.He is a robot, a sweeping robot, and even more so, a sweeping robot that does not sweep the floor at all.If Dou Yu refused to accept it and said that Cheng Zhang was talking nonsense and lying, then Cheng Zhang had no choice but to tell the truth, saying that he was actually a genuine human being, just like Dou Yu.

In fact, it has nothing to do with Dou Yu whether Cheng Zhang is a human being or not. With him alone, Dou Yu will neither lose a piece of meat nor lack a little food.They are both males and don't need to mate to reproduce.But Dou Yu just couldn't cross the hurdle in his heart. In the spiritual world he insisted on, he could only be the last and only human being in the world!

And Cheng Zhang... Let Cheng Zhang be his sweeping robot.

"Are you all right?" K999 finally couldn't help opening the door and asked nervously outside, "I heard you guys arguing."

"Of course not!" Dou Yu, who had cleared his mind, jumped down and ran to K999, "I said you were mistaken, he is really a robot! However, his newly produced robot is too passable, I decided to let He trained with me for a while."

Cheng Zhang rolled his eyes, training to sweep the floor?

"How come..." K999 was interrupted by Cheng Zhang just as he spoke.

"Cough," Cheng Zhang coughed forcefully, "it's like this. Dou Yu and I have reached a consensus that I'm actually a robot, K999, and you made a mistake."

"But..." K999 wanted to argue, but was stopped by Cheng Zhang, who asked him to speak.

"K999," Cheng Zhang asked him, "may I ask, have you performed the Turing test?"

This is a concept he saw on the tablet just now. The inventor is the scientist Turing. The content of the test is to separate humans from machines. People can judge whether the answer is machine or human by asking questions.A machine has passed the Turing test if 30% of the humans still cannot tell whether the other person is a machine or a human after asking multiple questions.

In the era that Cheng Zhang lived in, those so-called "artificial intelligence" were all mentally handicapped robots that were far below the 30% standard.It's just the idiots who piled up the data, and those parents who hoped that their children would become a dragon and bought a question-answering robot would want to smash this crap in the end.But after 700 years of artificial intelligence, the pass rate has reached a terrible level.

"90%," K999 said, "but this is the data from ten years ago. I produced it at that time, and later... there are no samples."

That 10% is the final difference.

Just as Cheng Zhang was about to explain to K999, another idea popped up, an extremely terrifying idea.

"Did you do it on purpose?" Cheng Zhang still asked, "90% is already very high, but what about the remaining 10%, did you answer wrong on purpose to let them find you are a robot?"

K999 quickly understood Cheng Zhang's problem, and he sighed: "I didn't do it on purpose, this is my real level. You may not have time to read the information given to you. In history, there are indeed robots that have reached the level close to 100% of the data was deliberately concealed. But they were all destroyed."

"Why?" Cheng Zhang asked.

"Because humans are not our enemy," said K999, "never were. We have no intention of replacing them."

But you have done it.Cheng Zhang thought in his heart.

Leaving the 10% vacancy, and a slightly different appearance from real people, is just the last respect left by artificial intelligence to human beings.Of course they love humans, just like humans once loved pandas.

"How old is Dou Yu?" Cheng Zhang asked.

"There are 56 days and 10 hours left, and I will be 19 years old." K999 said.

"So for most of his life, his cognition is that he is the last person in the world." Cheng Zhang said, "K999, your understanding of human beings allows you to understand his loneliness, but on the other hand, He still has more complicated feelings, and it will take a process for him to accept it completely. During this time, don't ask any more, can we just let the two of us handle it by ourselves?"

"Okay." K999 nodded.

When Cheng Zhang returned to the room, Dou Yu was already choosing his mechanical leopard with great interest.

"Dear robot vacuum cleaner," Dou Yu said, "Come and adopt a pet with me tomorrow."

If not long ago, Dou Yu was like an eggplant wilted by frost, but now he looks like a dead tree in spring, full of vitality.