At Hawking's home at Cambridge University, his party has begun.

The scene prepared a table of delicious food and wine, dozens of balloons decorated everywhere, Hawking sat in a wheelchair, quietly waiting for the possible "Time Traveler" to come from the future.

His nurse came up and said, "where is the banner you want, professor?"

Hawking was in his wheelchair, using his voice synthesizer, and after a long time he replied, "hang it in the living room, and then you can take a picture of me."

The nurse named Elaine, who has worked for him for ten years, smiles and hangs a "welcome time traveler" banner in the brightly lit living room.

Looking at the words on the banner, Elaine said with a smile: "Wow, so our doctor wants to discuss the universe with future people. As a Muggle, should I not be present?"

"That's for sure, so don't steal the salad. The future will know what you've done." Hawking, with his unique electronic synthesis, said with a crooked neck.

Elaine laughed even more. She took out her mobile phone and took a picture of Hawking. Then she took some pictures of the party table, balloons and banners.

Finally, she picked up her plate and ate the fruit salad and said, "really? Professor, if I steal a piece, will future people know? Well, there's not enough salad dressing. "

"Future people will certainly know, because this is what has 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 was called protection... "

"Timing protection conjecture, so this is a test and a joke. I know the future, but I can't go back to the present and tell you Hawking said.

"Joke?" Elaine smiles.

Hawking crooked his neck and grinned. Some of his facial muscles could move, but his smile was more like a grin.

"There will be no guests. Elaine, you can have some first, but don't move the ten bottles of cook champagne. I want to collect them. " Hawking finally had a showdown.

Elaine knew that this was the case. As one of the scientists who did not recognize time travel, how could Hawking support future people to cross to the past?

He also took out his ten bottles of cook champagne, which was bleeding.

Sure enough, it was just a show and a pat.

Elaine said, "Professor, a man was just wandering outside the yard, and then he was driven away by Thomson, as if he had used your door for a date. He's not going to be, is he? Your security guard may have missed a great discovery. "

Hawking said: "the real future man, he should have brought my invitation. And my invitation, only exists in my brain, will not be released until tomorrow. "

Elaine clapped her hands and said, "sure enough, you didn't intend anyone to come No wonder you brought out your most precious collection of champagne. "

Hawking said: "time travel is impossible, it has too many unexplained paradoxes, so when time travel appears, the law of causality will be paradoxical, and space-time will collapse."

"I think there is always an invisible force interfering with the time sequence, which will not let this happen! It's like the cosmic overseer guessed

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

Hawking grinned, and the electronic voice said: "this experiment is not rigorous. Although I firmly believe that time travel does not exist, I must admit that even if the time traveler does not come, it may be that my party is not attractive enough, it may be that the law of the future does not allow time to be worn, or There is no future for mankind... "

Elaine shrugged: "there is no future for mankind It's horrible. "

"Instead, I'm looking forward to the time traveler's party and finish your champagne

Hawking joked, "no! The champagne is my collection, and I won't let it be drunk

"But what would you do, Professor, if the time traveler did come? Are you crazy? " Elaine said with a smile.

Hawking grinned, thought for a long time, and then said in an electronic voice, "if someone goes to this party, I won't send out an invitation."

Elaine was shocked and said, "ah? No invitation? "

"It's the same paradox as the grandmother paradox," Hawking said. If there is no future party, to some extent, time travel does not exist. If someone is going to a party, I don't send an invitation. I want to know how he came with my invitation! "

Elaine was surprised and said, "isn't this a paradox?"

Hawking said: "yes, if we really let the paradox happen, it is likely that space-time will collapse and cause and effect will collapse. According to my timing protection conjecture, either the time traveler is erased in an instant, or the universe itself collapses, or the time machine is gone. "

"So the experiment I'm talking about is not rigorous. If I think so, future travelers will naturally know the consequences, so even with this technology, none of them will dare to come!"Elaine looks at Hawking in silence, ok This is thorough No one's coming at all.

"In order to protect your champagne, you also put together..." Said Elaine.

Hawking said with a deep look in his eyes: "the invitation paradox and the grandmother paradox are equivalent. It's not that I'm making trouble, but a risk that I have to face whenever I travel. So if you want to join this party, you have to overcome the paradox. "

Elaine cableway: "so whether it's the universe for the sake of not being destroyed, or the time traveler trying not to be erased, it all points to one result, that is, no one goes to this party. Even if God let him come, he would be erased in an instant. "

Hawking said:" this is timing protection, so time travel will not exist. "

"So I took out all my champagne collection and made this bet, and I won't lose. Have you finished taking photos? You can put the champagne back

Ding Dong!

Elaine had just picked up two bottles of champagne on the table when she heard the doorbell and glanced at it.

Meanwhile, Hawking's eyes rolled slightly, staring at the door.

"It's me, Elaine." Outside the door came the voice of security Thomson.

Elaine breathed a sigh of relief. She thought there was a time traveler. She went to open the door and saw two people walking in. One was a security guard and the other was a Chinese man in casual clothes.

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

Just as he nodded, Thomson said, "Professor, he came with an invitation to your party. You didn't tell me what the invitation looks like. Would you like to see if it's this one?"

After hearing this, Elaine was shocked and her hand shook. The champagne slipped from her hand.

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

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

“……” Elaine didn't dare to pick it up. She said no one would come?

She looked at Hawking in a hurry. He was grinning and staring at him. He wanted to stand up!

But the speech synthesizer did not say a word. He was controlling the speech synthesizer with his small amount of active muscles, but his heart was so chaotic that he could not organize a word for half a day.

"What about q? Where is the Q I want to send? "

Hawking organized the language, but could not find the letter he wanted. In a hurry, he thought he could send the phrase directly.

“yes! yes! yes!”

When Hawking said that, Thomson knew he meant the invitation was correct.

"I see. The next person who has this kind of invitation will be invited in directly. Have a good party, professor Thomson said as he left, glancing at the banner "welcome time traveler" on the living room.

Thomson smiles and thinks that Professor Hawking really plays.

He didn't know what party it was. Hawking only told him to bring someone in if he had an invitation.

He was just a little surprised to see the time traveler party. There are no aliens in the alien party, and there are no future people in the future people party, which are all normal things. It doesn't matter what the theme of the party is. It's communication.

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

Hawking's breathing became more and more rapid, so he could not speak stably. He could only send the phrase: "please come in! come in , please! come in , please! Come in, please

The Chinese man walked into the living room and bowed slightly to Hawking: "Hello, Professor Hawking. Just call me" Hua. "

It was Huang Ji who came to the party. I'm afraid he is the only one in the universe who can come to this party with an invitation.

Hawking is dying. The more anxious he is, the more he can't organize his language. He even feels difficult to breathe at the moment.

And Elaine is also in that silly Leng, don't know come to help oneself.

Elaine, it's really frightening.

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

Are you kidding? As mentioned above, it is impossible for a future person to come to the party with an invitation letter, and then this person will come?

And as soon as he entered the door, he caught his accidentally dropped champagne, which brought her an extremely terrible mystery.

Yes, terror.

Elaine doesn't know what ye gonghao long is, but her feeling at the moment is the same as Ye Gong.

A joking party was held and time travelers were invited. As a result, people really came

It's like not believing in ghosts, and then having a ghost recruiting ceremony. As a result, ghosts run to the front and say, "what do you want from me?"?

In fact, even those who believe in the existence of extraterrestrials are really thrilled when they come to the top of their heads.

The feeling that the world view is suddenly impacted is a kind of unspeakable fear.Elaine, with her back to the door, holding champagne in her hands, was stiff and her wrist trembled slightly.

She was at a loss and even forgot what she should do.

Huang Ji gives them time to calm down. He comes to the table and takes a glance at the so-called delicacies on the table.

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

Elaine looked at her back to her yellow pole, and suddenly remembered that such an important moment, should she take a picture?

She just felt out her cell phone

Suddenly Huang Ji said: "Elaine, you control Professor Hawking's Twitter. You'd better get his permission before taking photos and tweeting, otherwise it will lead to very serious consequences."

Standing behind Huang Ji, Elaine, who has taken out her mobile phone, is scared to throw her cell phone away.

"My God! What am I doing! " Elaine is really scared. Will she take photos and tweet, will it lead to the collapse of the universe?

"Yes, yes, yes I can't afford it

"I mean nothing else! I didn't mean to destroy the world

Elaine said incoherently. She thought of what Hawking said, such as causal paradox, space-time collapse, and so on, and immediately began to think.

How does the time traveler know she's going to take a picture? Do you really take photos and tweet in the future? Which led to serious consequences? Killed a lot of people?

In particular, Huang Ji said, "it will lead to very serious consequences." Elaine instantly put herself into the kind of common fool in the movie, who almost destroyed the world because of her ignorance.

She obviously thinks too much. Since the future man stands in front of him, the so-called time sequence protection is totally untenable.

"Calm down, the universe is strong, not so easy to collapse." Huang Ji puts down cook's champagne and holds up a plate of fruit salad.

At the moment, Elaine knew that she was going to serve, so she came to the table.

Huang extreme up, it is the fruit salad he ate before.

Elaine tangled, whether to tell the other party that she had eaten the fruit.

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

"This is what you prepared. If you want to, you can eat whatever you want." Huang Ji said.

Elaine is confused. She hasn't said anything yet.

Huang Ji added some salad dressing and said, "it's almost done now."

“……” Elaine shivered and took the fruit salad.

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

She did complain about the lack of salad dressing when she stole it.

Elaine quietly put away the original cook champagne, and instinctively shook, ready to open the bottle.

"No, I don't drink. Let Professor Hawking keep collecting." Huang Ji said.

Elaine's hand is stiff and looks at Hawking.

Hawking's mouth trembled. No, he had difficulty breathing.

Elaine immediately came to Hawking's side. She knew that Hawking was not in good health recently. Even on April 6, she even cancelled the external 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 as she put a ventilator on him.

Hawking is speechless. What hospital does he go to!

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

It is also his own fault that he is not ready for the arrival of the time traveler, so that he and Elaine are at a loss.

Elaine nervous brain a blank, and he also difficult to breathe, half a day can not send a complete word.

At this time, Huang Ji came to him, ate an orange in one hand, rubbed Hawking's throat with the other hand, raised Hawking's neck a little with a cushion, and inserted a needle into his hidden acupoint.

Hawking's breathing was better, but he couldn't move.

He looked at Huang Ji carefully again. The Chinese people in front of him looked plain and casual, but they had a kind of unspeakable mystery and self-confidence.

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

But after careful consideration, it seems that there is an unexpected but reasonable sense of appropriateness.

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

Huang Ji said with a smile: "I still have an hour and a half to accompany you. You don't have to be too excited."

"Aren't you afraid to change history?" Hawkins didn't care about Huang Ji's miraculous way of relieving his symptoms. He had too many questions to ask.

"History can't be changed, it can only be created," said Huang Ji

……

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