Turing test

Hua Jianian was not in a hurry to answer his question, but used his shoes to fiddle with the model train that occupied most of the basement, letting it slide back and forth along the rails.

"Of course, otherwise, wouldn't my efforts be in vain?" He picked up the little train, "The future Dr. Xie Ruihan proposed a theory of time travel. Let us assume that the world is a little train that is traveling along a predetermined track." .”

He put the model train on the track and slowly pushed it forward.

"The track that the train has passed is the 'history'; the track that the train will pass is the 'future'. Now there is a traveler who travels through time and space to return to the past, which is equivalent to pushing the 'World' train back to the past." track of the past."

Hua Jianian moved the model train back.

"But no matter what he does, the train will still rumble forward and travel along this established track. He can only take the train back to the past, but he can't change the track of the train."

"Does that mean the future cannot be changed?" Yu Shaoqing raised his eyebrows.

Hua Jianian raised his hand, telling him not to be restless.

"Suppose this time traveler intends to create a 'grandmother paradox' - he wanted to kill his grandmother in the past, since he would not be born without his grandmother, then who will kill his grandmother? Get a gun, find his grandmother, who is still a young lady, and shoot her."

Putting two fingers together, Hua Jianian pointed at Yu Shaoqing and shouted: "Bang! Grandma is dead? No. This traverser will never succeed. He must encounter various accidents and fail. Either the pistol went off suddenly, Either the bullet accidentally missed, or a brave passerby suddenly rushed over to stop him. In the most extreme case-he would die of cardiac arrest the moment he pulled the trigger. Grandma was still fine, not at all. Know that the young man who tried to kill him is his future grandchild. Because the world will protect itself and use all means to eliminate those factors that may derail it."

He tapped the shell of the small train with his fingers: "This kind of time travel that can only be seen in the beautiful past, but can never change history, is called Type I time travel."

"Could there be Type II time travel?" Yu Shaoqing was greatly surprised.He couldn't help glancing at Wei Heng out of the corner of his eye. The latter, as always, had a detached and indifferent expression. He didn't seem to be surprised by this theory that could subvert the worldview of ordinary people. Dabbing, or he is naturally good at hiding his mood.

"The next thing I want to talk about is type II crossing." Hua Jianian pointed to the intricate track on the ground, "Did you see it? There are many tracks in this room, not only the one where the train is running, but more Orbits are idle. Some run parallel to each other and never meet, and some intertwine but diverge somewhere. Each track represents a 'historical possibility'. Like this one."

He pointed to the track closest to Wei Heng, "This track represents 'What would happen if the fascists won World War II'." He pointed to the track closest to Yu Shaoqing, "That track represents 'What if the end of the US-Soviet Cold War is What would happen to the disintegration of the United States'. Every orbit is a possibility, and these possibilities are thousands and countless. Type II traversers can observe other orbits when they travel through time and space, and they know that the world's possible It became like '. But they still can't change the track of the train, they can only look at the ocean and sigh."

Yu Shaoqing said: "Let me guess, is there still Type III time travel? Type III time travelers can change history?"

"That's right!" Hua Jianian said happily, "Type III traversers are the most advanced traversers known so far. They can not only observe other tracks, but also push the train to change tracks."

He picked up the train model and put it on another track, "Their actions can make the train run on a completely different track, and they have the ability to change history and the future. The memory will change accordingly and become a memory adapted to the current orbit. After changing to this orbit, people will only remember that the Soviet Union became the only superpower in the world. After changing to that orbit, people will only remember being killed by the Nazis. The horror of slavery. The memory of the original track will no longer exist, and the world has embarked on a new path! Only Type II and Type III traversers can retain the memory of the two orbits before and after, so Type II traversers can also observe the changes in the world Orbital phenomenon. I am just a Type III time traveler. Dr. Xie Ruihan's theory and technology sent me back to the past, and I saved you two, now let us work together to save all mankind!"

He exaggeratedly grabbed one hand of Yu Shaoqing and Wei Heng each, and shook it vigorously, as if the three revolutionary seniors had successfully waved their hands.

"What should we do?"

"First of all, live." Hua Jianian let go of his hand, kicked away the little train on the ground, and walked towards a tattered cabinet in the corner.He took out a family medicine kit from the cabinet and threw it to Yu Shaoqing, "You are injured, bandage it well, then rest, and when you regain your energy, quickly roll over here."

He drew back the curtain in the basement.

Yu Shaoqing opened his eyes wide.

Behind the curtain is a simulation cabin, with blue and red cables dragging around, connecting with five computers arranged in a fan shape at the rear, which looks a bit like a testing room in a research institute.

"Let me help you clear those codes written by Tianshu in your mind."

Yu Shaoqing opened the medicine box and took out a bandage and Yunnan Baiyao aerosol.He took off his shoes and socks with difficulty.The ankle is red and swollen, and it hurts badly to the slightest touch.

"Let me do it."

Wei Heng knelt down on one knee in front of him, patted his knee, and asked him to rest his foot on it.

"Like a marriage proposal." Yu Shaoqing tilted his head and said.

"You want me to propose to you?" Wei Heng raised his eyes and glanced at him quickly.

"Just kidding." Yu Shaoqing quickly denied.

Wei Heng pinched the wound, sliding his fingers along the bone.Yu Shaoqing gasped in pain, and every time he made a sound, Wei Heng's movements became softer.

"No bone, probably just a sprain."

He sprayed Yunnan Baiyao and wrapped it neatly with a bandage.He did it carefully, with a focused expression like an expert in the restoration of cultural relics treating a priceless and rare treasure.Yu Shaoqing looked at the top of his hair, his drooping bangs and slender eyelashes, and his thin lips that would be tightly pressed once he was concentrating.

Suddenly want to kiss him.

Wei Heng raised his head, and was about to say "It's all bandaged", when he saw Yu Shaoqing staring at him without saying a word, his dark eyes were full of inexplicable emotions, like the sparse starlight shining from time to time behind the night clouds .

"What's wrong?" he asked.

Yu Shaoqing stretched out his hand, raised his chin, and rubbed his thumbs against his lips, as if feeling the soft lines of his lips with his skin, condescending and ambiguous.

Wei Heng grabbed his wrist, stopped his movements, and then branded a kiss on his palm.

Turning his hand over, kissed the back of his hand again.

Finally, she clings to his slender fingers and kisses his ring finger.

"What are you two dawdling about!!!"

From behind the curtain came Hua Jianian's impatient roar and the sound of slamming on the table.

The two separated immediately, as if they were stabbed by each other's static electricity.

"Come on!" Yu Shaoqing shouted.

He stood up, put his weight on his uninjured leg, and wobbled a few times due to poor balance.Wei Heng held him by the arm without him having to speak.Yu Shaoqing suddenly wondered, if he complained of pain at this time, would Wei Heng carry him directly to the simulation cabin?

The thought made him laugh uncontrollably.

"Why are you smiling so much?" Hua Jianian sat in front of the computer and looked back at him.

Yu Shaoqing lay down in the simulation cabin, "I didn't smile, my facial muscles were convulsed."

"It may be brain neuropathy, God, Tianshu has ruined your brain!"

"You are enough! Wei Heng has also participated in Tianshu's Turing test, do you want to help him clean up the codes in his brain?"

Wei Heng hesitated for a moment and said, "Tianshu didn't write the order in my brain."

"why?"

"I am not sure as well."

Hua Jianian helped Yu Shaoqing put on the device for monitoring heartbeat and blood pressure. "The time is short, so we won't give you life-support equipment."

"How long will it take?" Yu Shaoqing asked.

"It's over in a flash." Hua Jianian said.

As soon as the words fell, Yu Shaoqing passed out with an "ow".

Opening his eyes again, Yu Shaoqing found that he was lying on the sofa, covered with a blanket with a smell (similar to the smell of undried clothes on a rainy day).All the lights in the basement were turned off, only the small light on the simulation pod indicating the power supply was still blinking.

He propped himself up slightly, and found Wei Heng lying on the floor next to the sofa, with two books on his pillow, also wrapped in a thin blanket.Across the toy model train, Hua Jianian was sleeping on a camp bed at the other end of the room.

Yu Shaoqing thought, I don't know how this guy prepared it. He even got the explanation props, the little train, but he refused to get two more beds.

Wei Heng's body curled up slightly, maybe it was because of the cold floor, but he still frowned and trembled from time to time in his sleep.Yu Shaoqing touched the blanket on his body, slid off the sofa lightly, and covered Wei Heng with the blanket.

He was just about to get up when someone grabbed his wrist abruptly.

Yu Shaoqing was so frightened that his heart beat suddenly.Wei Heng opened his eyes, and with a tug, Yu Shaoqing lost his balance and fell into his arms.

"What are you doing?" He asked angrily, afraid of waking Hua Jianian.

Wei Heng stared at him in the dark, his dark eyes reflected the light of the power supply of the simulation cabin, and the light spots flickered on and off regularly.

Not far away, Hua Jianian uttered an indistinct dream and turned over.

Wei Heng held Yu Shaoqing's face in his hands, and the two looked at each other through the faint light, as if hoping to see a deep and magnificent universe from each other's eyes.

"Can you?" Wei Heng asked with his mouth.

Yu Shaoqing didn't speak, and pointed to Hua Jianian who was sleeping soundly.

"Keep quiet. It won't wake him."

Yu Shaoqing frowned. "We've broken up."

"No one stipulates that you can't have sex after breaking up." Wei Heng sat up, wrapped his strong arms around Yu Shaoqing's waist, and pressed him on his body, unable to move.Yu Shaoqing twisted his body uncomfortably.

He found that Wei Heng was stiff.