The Omniscient

At the home of Hawking at Cambridge University, his party has already begun.

A table of sumptuous food and wine was prepared on the spot, dozens of balloons were decorated everywhere, and Hawking sat in a wheelchair, quietly waiting for a possible time traveler to come from the future.

His nurse came over and said, Professor, where is the banner you want?

Hawking was in a wheelchair, using his speech synthesizer, before replying after a while: Hang it in the living room, and then you can take a picture of me.

The carer, named Elaine, has been with him for ten years, smiling in the brightly lit living room with a Welcome Time Traveler banner.

Looking at the words on the banner, Elaine smiled and said, Wow, it turns out that our doctor is going to discuss cosmic affairs with future people. As a Muggle, shouldn't I be there?

Of course, so don't steal the salad. People in the future will know what you did. Hawking tilted his neck and said in his unique electronically synthesized voice.

Elaine laughed even more, took out her phone and took a picture of Hawking, and then took a few more pictures of the party table, balloons, and banners.

Finally, she picked up the plate and ate the fruit salad and said, Really? Professor, if I stole a piece, will people in the future know? Well, there's less salad dressing.

Of course people in the future will know because it's already happened to them, Hawking said.

Elaine ate a few pieces and said, Don't you think time travel doesn't exist? I remember what it's called protection...

The timing protection conjecture, so this is a test and a joke. The future I know, but I can't go back and tell you now, Hawking said.

Joke? Elaine smiled.

Hawking tilted his neck and smiled. Some of his facial muscles were movable, but his smile was more like a grin.

There will be no guests. Elaine, you can eat a little first, but don't move the ten bottles of Cook champagne, I'll keep them for collection. Hawking finally had a showdown.

Elaine knew this was the case. As the scientist who least recognized time travel, how could Hawking support people from the future to travel to the past?

He also took out ten bottles of Cooke Champagne that he treasured, which was a bloodbath.

Sure enough, it's just pretending,

Just posing.

Elaine said: Professor, there was a man who was wandering outside the yard just now and was chased away by Thomson, as if he used your door as a date spot. Couldn't he be someone from the future? Your security may have missed you A great discovery.

Hawking said: The real future person should bring my invitation letter. My invitation letter only exists in my brain and will not be announced until tomorrow.

Elaine clapped her hands and said, Sure enough, you didn't intend for anyone to come... No wonder you took out your most precious champagne collection.

Hawking said: Time travel cannot be done. It has too many unexplainable paradoxes, so when time travel appears, the law of causality becomes paradoxical, and time and space collapse.

I think there is always an invisible force interfering with the timing, and it won't let this kind of thing happen! It's just like the cosmic overseer conjectures.

Elaine said, So you want to do an experiment before you retire to prove that time travel doesn't exist...

Hawking grinned and said in an electronic voice: This experiment is not rigorous, although I firmly believe that time travel does not exist, but I must admit that even if the time traveler does not come, it may be that my party is not attractive enough, or it may be It may be that the laws of the future do not allow time travel, or it may be that human beings have no future...

Elaine shrugged and said, Humanity has no future... This is terrifying.

I now expect time travelers to come to your party and finish your champagne!

Hawking quipped: No! Champagne is my treasure and I won't let it be drunk.

But Professor, if the time traveler really came, what would you do? Would you go crazy? Elaine laughed.

Hawking grinned, thought for a long time, and then said in an electronic voice: If anyone comes to this party, I won't send an invitation!

Elaine was stunned and said: Huh? No invitation letter?

It's a paradox similar to the grandmother's paradox, Hawking said. If there are no future people at the party, it means that time travel does not exist. If there are future people at the party, then I will not send an invitation, I would like to know. , how did he come with my invitation letter!

Elaine was surprised: Isn't this a paradox?

Hawking said: Yes, if the paradox does happen, it is very likely that space-time collapses and causality collapses. According to my chronological protection conjecture, either the time traveler is wiped out in an instant, or the universe itself collapses, or the time machine does not exist anymore. .

So the experiment I'm talking about is not rigorous. I think so, future travelers will naturally know the consequences, so even if they have this technology, none of them dare to come!

Elaine looked at Hawking speechlessly, okay...this is completely...no one was going to come at all.

In order to protect your champagne, you also fought hard... Elaine said.

Hawking said with deep eyes: The invitation paradox is equivalent to the grandmother's paradox. This is not me making things difficult, but a risk that any time travel must face. So if you want to participate in this party, you must overcome the paradox. question.

Elaine pondered: So whether the universe is not destroyed, or the time traveler is not erased, it all points to one result, that is, no one attends this party. Even if God makes him come, it will be erased in an instant. go to him,

This is chronological protection, so time travel doesn't exist, Hawking said.

So I took out all my champagne collection and made this bet, I won't lose. Is the photo done? You can put the champagne back.

Ding dong!

As soon as Elaine picked up the two bottles of champagne on the table, she heard the doorbell and glanced over.

At the same time, Hawking's eyes rolled slightly, staring at the door.

It's me, Elaine. Security Thomson's voice came from outside the door.

Elaine breathed a sigh of relief. She thought that a time traveler was really here. She walked over to open the door and saw two people walking in, one was a security guard and the other was a casually dressed Chinese man.

The Chinese man nodded slightly to Hawking in the center of the living room, then showed the invitation letter with one hand, and grabbed the other hand towards Elaine's skirt.

Just as he nodded, Thomson said, Professor, he came with an invitation letter and said he was attending your party. You didn't tell me what the invitation letter looked like. Can you see if it's this one?

Hearing this, Elaine was shocked, her hands shook, and the champagne slipped from her hands.

At the same time, however, the hand just arrived, catching the champagne firmly.

Professor Hawking's collection, don't break it. The Chinese man said in fluent English, and returned the champagne to Elaine.

... Elaine didn't dare to pick it up, and said no one would come?

She hurriedly looked at Hawking, only to see Hawking grinning and staring, with an expression that he could not wait to stand up!

But the speech synthesizer didn't say a word. He was using his few active muscles to control the speech synthesizer, but his mind was so chaotic that he couldn't organize a sentence for a long time.

Where's the Q? Where is the Q I want to send?

Hawking organized the language, but couldn't find the letters he wanted. In a hurry, he thought that he could send the phrase directly.

yes! yes! yes!

Seeing what Hawking said, Thomson knew he meant the invitation was correct.

Understood, I will invite the person who holds this kind of invitation to come in. I wish you a happy party, Professor. Thomson said and left, and before leaving, he glanced at the living room. Banner 'Welcome time traveler'.

Thomson smiled and thought to himself that Professor Hawking really knew how to play.

He didn't know what kind of party it was, and Hawking only told him to bring him in if anyone had an invitation.

He was only a little surprised to see the time traveler party at this moment. There are no aliens in the alien party, and there are no future people in the future party. This is a normal thing. It doesn't matter what the theme of the party is, what matters is the communication.

The security left, and Elaine was still at the door, at a loss.

Hawking's breathing became more and more rapid, and it was difficult for him to speak stably. He could only frantically send phrases: Please come in! Please come in! Please come in! Please come in!

The Chinese man walked into the living room, bowed slightly to Hawking and said, Hello, Professor Hawking, my name is Huaxu, just call me 'Hua'.

The person who came was Huang Ji, and he was probably the only one in this universe who could bring an invitation to this party.

Hawking was dying of anxiety. The more anxious he was, the less he could organize his language. He even felt breathless at the moment.

And Elaine was also dumbfounded, not knowing how to come to help herself.

Elaine, I was really scared.

From Hawking's reaction, she could tell that the invitation was right.

What are you kidding? As I said before, it is impossible for someone from the future to come to the party with an invitation letter, but this person came?

And as soon as he entered the door, he caught the champagne that he accidentally dropped, which calmly brought her an extremely terrifying sense of mystery.

Yes, horror.

Elaine didn't know what it meant for Lord Ye to be a good dragon, but she felt the same as Lord Ye at the moment.

Throwing a party like a joke, inviting time travelers, and people really come...

It's like not believing in the existence of ghosts, and then doing a ghost-calling ceremony, and the ghosts ran up to the front and said: Are you looking for me for something?

In fact, even people who believe in the existence of aliens, when the aliens come to the top of their heads, the first reaction is horror.

The feeling of the worldview being instantly impacted is an indescribable fear.

Elaine leaned her back against the door, holding the champagne in both hands, her body was stiff, her wrists trembled slightly.

She was overwhelmed and even forgot what she was supposed to do.

Huang Ji gave them time to calm down, came to the table and glanced at the so-called delicacies on the table.

Well, he doesn't want to eat anything but fruit...

Elaine looked at Huang Ji with her back to her, and suddenly remembered such an important moment, should she take a photo?

She just took out her phone...

Suddenly Huang Ji said: Elaine, you control Professor Hawking's Twitter. It's better to get his consent before taking pictures and tweeting, otherwise it will lead to very serious consequences.

Standing behind Huang Ji, Elaine, who had already taken out her mobile phone, threw it away in a flash.

Oh my God! What am I doing! Elaine was really frightened, taking pictures and tweeting by herself, will it cause the universe to collapse?

Yes, yes, yes... I'm sorry!

I don't mean anything else! I didn't mean to destroy the world!

Elaine spoke incoherently. She remembered what Hawking said about the paradox of cause and effect, the collapse of time and space, and the like, and she immediately thought about it.

How did the time traveler know she was about to take a photo? Did you actually take pictures and tweet them in the future? And then lead to very serious consequences? Killed a lot of people?

Especially when Huang Ji said, It will lead to very serious consequences, and Elaine instantly replaced herself as the kind of idiot who is common in movies, almost destroying the world because of ignorance.

She is obviously thinking too much. Since the future person is standing in front of him, the so-called time series protection is completely untenable.

Calm down, the universe is strong and won't collapse so easily. Huang Ji put down Cook's champagne and picked up a plate of fruit salad.

At this moment, Elaine knew she was going to entertain, and hurriedly came to the table.

What Huang Ji got up was the fruit salad he had secretly eaten before.

Elaine was tangled, should she tell the other party that she stole the plate of fruit.

As a result, Huang Ji directly handed the plate to himself.

This is what you prepared, of course you can eat whatever you want. Huang Ji said.

Elaine was stunned, she didn't say anything.

Huang Ji added some salad dressing and said, It's almost there now.

... Elaine trembled and took the fruit salad.

Sure enough, do people in the future know that they will steal fruit salad?

When she ate it secretly before, she did complain about the lack of salad dressing.

Elaine silently put the Cook champagne that was about to be put away, and shook it instinctively, ready to open the bottle.

No, I don't drink, let Professor Hawking continue to collect. Huang Ji said.

Elaine froze and looked at Hawking.

I saw Hawking's mouth trembling with anxiety, no, he was having trouble breathing.

Elaine immediately came to Hawking's side. She knew that Hawking's health was very bad recently. Even on April 6, she canceled her overseas visit due to illness, and then went to the hospital for treatment.

How are you, Professor? Do you want to go to the hospital? Elaine said instinctively while putting him on a ventilator.

Hawking was speechless, what hospital did he go to!

He would rather die than eat fruit after the time traveler arrives!

It was his own fault that he was completely unprepared for the real arrival of the time traveler, so that both he and Elaine were so at a loss.

Elaine's mind went blank nervously, and he had difficulty breathing, unable to utter a complete sentence for a long time.

At this moment, Huang Ji walked in front of him, eating an orange in one hand, rubbing Hawking's throat with the other hand, using a cushion to prop up Hawking's neck slightly, and inserting a needle into it. his hiding place.

In an instant, Hawking felt much better. He still couldn't move, but his breathing was smooth.

He looked at Huang Ji carefully again. The Chinese in front of him looked unremarkable and dressed casually, but he had an indescribable mystery and confidence.

Hawking had fantasized about meeting time travelers countless times, but he never imagined that the other party would be a Chinese.

But after careful consideration, there seems to be an unexpected but reasonable sense of appropriateness.

Welcome! Hua, I'm sorry, I didn't expect to come... Hawking finally said a word.

Huang Ji smiled and said, I still have an hour and a half to accompany you, so you don't have to get too excited.

Aren't you afraid of changing history? Hawking didn't care at all about Huang Ji's medical skills that miraculously relieved his symptoms. He had too many questions to ask.

Huang Ji said: History cannot be changed, it can only be created.

...