Wen Tianyi was stunned: "What do you mention?" ”

"I've traveled to the next 10 years...... You know what era I'm referring to, right? He Jun said.

"Oh, I know." Wen Tianyi suddenly said, "But I'm not sure if you have stayed in that time and space since you returned to the modern era, as far as I know, your information has been top secret for a long time, and it was not until the middle of the twenty-first century that many information was confirmed that the information was valued by the high-level, and your situation began to be slowly made public from that time until it became widely known." ”

"That makes sense." He Jun nodded thoughtfully.

If the high-level officials get the information related to time and space, it would be strange if they didn't seal it and store it, Geng Le's guy is extremely unlikely to know.

The transformation of the community is a tight time and a heavy task, involving various branches of the military and aerospace equipment, and it is so sensitive that it is a mess, how can there be no support from the state and the army behind it?

What would it be like if the other self was also in that time and space, and the future self hid in the shadows, silently paying attention to the younger self, and watching himself fall into the vortex of time and space?

Speaking of personal experience, just thinking about it made He Jun uncomfortable.

He couldn't help but ask, "Old Wen, I heard that the two of them are in the same time and space...... Uh, no, it's a person who crosses over and meets himself, and the two of them will become one, is there such a thing? ”

"Nonsense!" Wen Tianyi said categorically.

"What about the grandmother paradox? It's the one who went back in time and killed his grandmother. He Jun asked again.

Wen Tianyi sighed: "You really stumped me, this question is no longer a scientific problem, but a philosophical one." Or is it a philosophical problem that is always idle and has nothing to do, specifically for the difficult brain. I've never been interested in this kind of question, and I don't have the leisure to study it. ”

"And the answer? Yes or no? He Jun had no intention of giving up.

Wen Tianyi's gaze swept over the people who were sitting with him: "Old Qin." It's up to you to explain, I'm not good at this. After speaking, he said to He Jun, "Qin Lao is an authoritative expert in this area, a national treasure-level expert!" ”

He Jun hurriedly greeted: "Hello Old Qin." ”

"Don't dare to be." An elderly man in his seventies smiled and waved his hand.

His hair was gray and his face was red, and his expression was neither humble nor arrogant: "There is an answer, but the answer itself is as ambiguous as the question." ”

"It's okay, what do you always say, I'll listen to it." He Jun unconsciously used a respectful tone.

It is true that Qin Lao's seniority is low, but he is older than him. And it seems that he is knowledgeable, sitting here as a scholar is a kind of affirmation and recognition in itself, no matter how respectful he should be to such an old man, don't you see that Wen Tianyi's attitude is very polite?

He Jun's attitude made Qin Lao very useful, and said unhurriedly: "Then my old man will say a few words...... All along, the crossing was a fortuitous event, and most people studied the jerk problem of the grandmother paradox. It's all out of curiosity, standing in the perspective of a bystander, and if they really kill their grandmother, they must have run faster than a rabbit. After all, no one wants to mess with their own lives, does they? ”

There was a burst of low laughter.

"That's right." He Jun also smiled, it would be reasonable to say that someone killed someone else's grandmother after crossing over. How much does your brain have to pump to find trouble with your grandmother?

The old man waited for everyone to finish laughing. He continued: "Of course, the forest is big and there are all kinds of clever (birds). The world is so big, there is no shortage of crazy bastards anywhere, but I found that there are certain rules for crossing, and those who want to travel to ancient times to make contributions generally can't get the opportunity to cross; Those involved in the time-traveling event all tried their best to sharpen their heads and return to their own time and space, so until today, there has not been a single instance of the grandmother's paradox. Of course, there may have been people who have done this, but the problem is that the implementation of such a plan is itself a logical paradox. ”

"I want to hear about it!" He Jun couldn't wait to urge.

"This paradox is a bit complicated to explain." The old man thought for a while, got up and walked to the side and beckoned, "Come on, let's demonstrate together, how about it?" ”

"Okay, count me in!" Wen Tianyi walked over with great interest.

He Jun hurriedly followed, and Lin Kai also followed without saying a word.

There are still many people who want to follow up, but Qin Lao waved his hand: "Three people are enough." ”

Qin Lao smiled and pulled Lin Kai aside to stand: "You are the grandmother when you were young. ”

Lin Kai was like a wooden stake and slammed it there, at the mercy of Qin Lao.

Qin Lao pulled He Jun over again: "You are the one who made the brain." ”

He Jun grinned, and said in his heart that I am a psychopath?

"What about me?" Wen Tianyi asked curiously.

"You are a bystander, an eyewitness to the event, a witness." Qin Lao arranged a very easy job for the first brother.

"Got it, I'll just stand here and watch." Wen Tianyi smiled and nodded.

"Right!" Qin Lao smiled, "Now let's start assuming, He Jun, you have brain lesions or are forced to be helpless, in short, you have to kill Lin Kai, the grandmother, in order to ensure that there is a result, you also invite witnesses, clear?" ”

Several people nodded in unison.

Qin Lao grabbed He Jun's hand and stabbed Lin Kai falsely: "We don't consider the situation where we can't kill the grandmother, we just assume that you can kill the young grandmother......"

"Why?" Lin Kai, who didn't understand half-understood, asked instinctively.

"Because this is an insoluble paradox, no one knows the answer, so assumptions must be put forward for the subsequent inferences to be true."

Lin Kai still didn't understand much, but he closed his mouth with interest, and asked He Jun again later.

After explaining Lin Kai's question, Elder Qin continued: "Then when the young grandmother dies, you will disappear immediately, right?" ”

Everyone nodded again.

"Then the question arises, since you no longer exist, who brought this witness in?" Qin Lao pointed at Wen Tianyi and asked.

Everyone was stunned together, none of them who could sit here were stupid, and they immediately understood what Qin Lao meant.

"That's right!" Wen Tianyi slapped his thigh, "Since this person was never born, how could he invite witnesses?" ”

Qin Lao smiled: "Even if he is threatened with kidnapping, since he was never born, it is naturally no longer him who has been kidnapped, but another person, but no matter who he is replaced, there is the same paradox." ”

He Jun looked at Wen Tianyi and then at Qin Lao, and said hesitantly: "I don't understand, what does this paradox mean?" He felt as if there was a layer of window paper in his heart that would be torn if he poked it, and he vaguely saw the answer, but he couldn't see it clearly.

Qin Lao smiled: "The paradox itself is meaningless, I just want to tell you that no matter what you do, no one will know the final result, so it is as pointless to study the grandmother paradox as the paradox itself." ”

"What if you can't kill the young grandmother?" He Jun asked again.

Qin Lao continued to smile: "If I know the answer, then will the grandmother paradox still exist?" ”

He Jun couldn't help but be stunned, this old man is really cunning! (To be continued.) )