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

A table of hearty wine and delicacies was prepared on site, and dozens of balloons were decorated everywhere. Hawking sat in a wheelchair, quietly waiting for possible "time travelers" to arrive from the future.

His nurse came over and said, "Professor, where are the banners you want?"

Hawking was in a wheelchair, using his voice synthesizer, and after a while he replied: "Hang in the living room, and then you can take a photo of me."

The caregiver is named Elaine, who has been working for him for ten years. She smiled and hung a banner "Welcome Time Traveler" in the brightly lit living room.

Looking at the words on the banner, Elaine smiled and said, "Wow, it turns out that our doctor is going to discuss the major events of the universe with future people. As a Muggle, shouldn't I be present?"

"That's certain, so don't steal salads. People in the future will know what you have done." Hawking his neck tilted and said in his unique electronic synthesizer.

Elaine smiled even more happily. She took out her cell phone and took a photo of Hawking, and then took a few photos at the party table, balloons, and banners.

Finally, she picked up the plate and ate the fruit salad and said, "Really? Professor, will people in the future know about it if I steal a piece? Well, there is less salad dressing."

"The future people will certainly know, because this is something that has happened to them," Hawking said.

Elaine ate a few pieces and said, "Don't you think time travel does not exist? I remember what protection is called..."

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

"Join?" Elaine smiled.

Hawking tilted his neck and smiled. Some of his facial muscles could move, but his smile seemed to be grinning.

"There will be no guests. Elaine, you can eat a little first, but don't move those ten bottles of Cook champagne, I'll use them to collect them." Hawking finally showed up.

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

He also took out ten bottles of Cook champagne he had collected, which was bleeding heavily.

As expected, it was just a show and a photo.

Elaine said: "Professor, there was a man wandering outside the yard just now and then driven away by Thomson. He seemed to have used your doorstep as a date. He wouldn't be the future, right? Your security guard may have made you miss a great discovery."

Hawking said: "A true 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 plan to come at all... No wonder you took out your most precious champagne collection."

Hawking said: "Time travel cannot be done. It has too many paradoxes that cannot be explained, so when time travel occurs, the law of cause and effect becomes paradox and time and space collapse."

"I think there is always an invisible force that interferes with the timing and will not allow such things to happen! Just like the cosmic supervisors guessed."

Elaine said: "So you want to do an experiment before retirement to prove that time travel does not exist..."

Hawking grinned and said: "This experiment is not rigorous. Although I firmly believe that time travel does not exist, it must be admitted that even if the time traveler does not come, it may be that my party is not attractive enough, or that future laws do not allow time travel, or that humans have no future..."

Elaine shrugged, "Humans have no future... This is too terrifying."

“I’m looking forward to time travelers going to your party and then drinking all your champagne!”

Hawking quipped: "No! Champagne is my treasure, I won't let them be drunk."

"But professor, what do you do if the time traveler is really here? Will you go crazy?" Elaine smiled.

Hawking grinned, thought for a long time, and then said in electronic voice: "If someone attends this party, I won't send out an invitation!"

Elaine was stunned and said in surprise: "Hey? Don't send an invitation letter?"

Hawking said: "This is also a paradox similar to the grandmother's paradox. If there is no future person to attend the party, it means that time travel does not exist. If there is a future person to attend the party, I will not send an invitation letter. I want to know how he came with my invitation letter!"

Elaine said in surprise: “Isn’t this a paradox?”

Hawking said: "Yes, if the paradox really happens, it is likely that time and space collapse and cause and effect collapse. According to my time series protection conjecture, either the time traveler is wiped out instantly, the universe itself collapses, or the time machine no longer exists."

"So what I said is not rigorous. If I think so, future travelers will naturally know the consequences, so even with this technology, no one dares to come!"

Elaine looked at Hawking speechlessly, OK... this is completely... she didn't plan to come at all.

"In order to protect your champagne, you have also tried..." Elaine said.

Hawking said with a deep look: "The invitation paradox is equivalent to the grandmother paradox. This is not a problem I am making, but a risk that must be faced in any time travel. So if you want to attend this party, you must overcome the problem of paradox."

Elaine thought, "So whether it is the universe for not destruction or the time traveler for not being erased, this points to the result, that is, no one attends this party. Even if God lets him come, he will be erased in an instant,"

"This is time-series protection, so time travel won't exist," Hawking said.

"So I took out all the champagne collection and made this bet, and I won't lose. Are the photos taken? You can put the champagne back."

Dingdong!

As soon as Elaine picked up the two bottles of champagne on the table, she heard the doorbell and glanced at it with her eyes.

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

"It's me, Elaine." The voice of security guard Thomson came from outside the door.

Elaine breathed a sigh of relief. She thought there was really time for a traveler to come. She walked over and opened the door and saw two people walking into the door, one was a security guard and the other was a casual 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 Elaine's skirt with the other.

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 looks like. Do you see if it's this one?"

After hearing this, Elaine was shocked, her hands shook, and the champagne slid from her hands.

However, at the same time, the hand happened to arrive and steadily caught the champagne.

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

"..." Elaine didn't dare to answer, and she said no one would come?

She quickly looked at Hawking, and saw Hawking grinning, staring dryly, with an expression that she wanted to stand up!

But the voice synthesizer didn't say a word. He was using his small amount of moving muscles to control the voice synthesizer, but his heart was so confused that he couldn't organize a sentence for a long time.

"Where is 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 phrases directly.

“yes!yes!yes!yes!”

When Thomson saw Hawking say this, he knew that the invitation letter was correct.

"I understand. I will invite him directly to the person who holds this kind of invitation next. I wish you a happy party, Professor." Thomson said as he left, and before leaving, he looked at the banner in the living room 'Welcome time traveler'.

Thomson smiled and thought to himself that Professor Hawking is really good at playing.

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

He was just a little surprised when he saw 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 normal. What is the theme of the party does not matter at all, but the important thing is communication.

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

Hawking's breathing became more and more rapid, and he could not speak steadily, so he could only send a phrase like "Please come in! Please come in! Please come in!"

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

The person who came was Huang Ji. He is probably the only one who can come to this party with invitation letters in this universe.

Hawking was almost anxious. The more anxious he was, the less he could not organize his speech. He even felt difficulty breathing at this moment.

Elaine was also standing there stupidly, not knowing to come to help her.

Elaine, she was really scared.

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

What a joke? I said so much before that, it is impossible for a future person to come to the party with invitation letters, but the person came?

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

Yes, horror.

Elaine didn't know what Ye Gong was, but her feelings at this moment were the same as Ye Gong.

I jokingly held a party and invited time travelers, but they really came...

It's like not believing that ghosts exist, and then they do a ritual to attack ghosts, and the ghost ran to the front and said: Are you asking me for something?

In fact, even those who believe in the existence of aliens will be thrilling when aliens descend on their heads.

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

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

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

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

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

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

She just took out her cell phone...

Suddenly Huang Ji said: "Elaine, you control Professor Hawking's Twitter. It's best to seek his consent before taking a photo and posting a Twitter account, otherwise it will lead to serious consequences."

Standing behind Huang Ji and having already taken out his cell phone, Elaine was so scared that she threw away the cell phone in an instant.

"Oh my God! What am I doing!" Elaine was really scared. Will taking photos and tweets by herself lead to the collapse of the universe?

“Yes, yes, yes… no apology!”
To be continued...