Natsu was powerless to instill a lot of his own thoughts into Najtrag.

This includes, but is not limited to, those just mentioned.

"How do you think this world came about?" Xia's weak hands were handcuffed behind his back, but even so, he still calmly asked the old man in front of him.

"How was it born?" Netra Lague frowned, "According to science, it should be the Big Bang ......"

"No, it's not." Xia shook his head weakly.

Seeing that the theory he had always believed in was refuted by the young man in front of him in an extremely crisp tone, Natra Lague was a little unhappy.

"Then why not?"

Xia couldn't afford to look at Netra Ge seriously, and then spoke, "Why do you believe in this theory so much?" ”

"Because the observations and theories of Lemaître, Gamow, Hubble and others proved ......"

Netra Lager said, but before he could finish speaking, he was interrupted by Natsu weakly.

"Do you know them, have you seen them, or have you seen their research process with your own eyes?"

"How could I!" Netra Lague felt that the question was a little laughable.

"So, since you haven't talked to the people who put forward the theories, witnessed their research process, and never proved the theories they put forward yourself, why are you so sure of believing them?" Xia was powerless and asked, "Is blindly believing in other people's theories really compatible with your own creed of pursuing the truth?" Why did you choose to study the theory of chessboard flipping in the first place? ”

Netra Lagor was dumbfounded.

And Xia powerless did not stop.

"Now this is the underworld, so I would like to ask, do you think it is day or night?" He asked, smiling.

"Now......" Netra Lago yawned, then casually glanced at the electronic clock on the wall.

The clock has a number on it.

13：42

That is, it was the afternoon.

"In the afternoon, it's daytime." Nejtra replied.

"But you know what? Before I asked you this question, I noticed that your electronic clock was broken yesterday, so the time it provides is not accurate. Xia smiled weakly, "But I just noticed one thing, you yawned. ”

"Although you may be yawning because you are a little tired, it cannot be ruled out that it is due to the influence of your own biological clock, you always go to bed on time at twelve o'clock in the evening, so I think it is about twelve o'clock now." Xia added weakly.

"This ......" Netra Lague suddenly didn't know what to say.

"If you have doubts about something, even if it is a truth that cannot be argued with the world, as long as you still want to find out, then you must find out why. Because of the so-called truth...... It is only through your own body and your own will that you can truly understand whether it is the truth or not—this is what you said when you expounded your own thoughts. Xia Fu continued, "The truth from hearsay cannot be called the truth at all, and your own eyes may deceive you. ”

"You can only prove it by your own experience."

"Although you have always claimed your theories and the free ideas contained in them, have you never paid attention? Your own mind and way of thinking have long been bound by the axioms of this world. ”

"There was once a philosopher named Russell who came up with a theory called the 'turkey problem,' and I think, as a pioneer in the study of the nature of the world, should be able to answer the question you are facing now."

"There was a flock of turkeys on a farm, and the farmer came every day at 11 noon to bring them food. There was a scientist in Turkey who observed this phenomenon for almost a year, and he discovered a great theorem in his own universe: 'Every morning at 11 o'clock in the morning, food must come'. Then, on the morning of Thanksgiving, he announced the theorem to the turkeys, but the food did not arrive at 11 o'clock, and the farmer came in and killed them all. ”

Netra Lague hadn't heard of the theory, but he still shuddered at it.

"You're in that theory right now." Xia couldn't say bluntly, "Because it is clear that what you want to study is knowledge outside the world, but the methods you use are all theories in this world. ”

"You don't know when the farmer is coming to feed, and you don't know when the farmer's Thanksgiving is." Natsu twisted his hands behind his back in an attempt to make his posture a little more comfortable, "But you know the farmer's existence. ”

"Did you know? I actually have a hypothesis. Xia was unable to look at Netra with a slightly strange look, which made Netra Ge feel a little uncomfortable.

It's as if you've been seen all over the bottom of your heart.

"Before I make that assumption, though, I have a question." His eyes were fixed on Natrag, making him a little unable to refuse his question.

"What?"

"Is the current Qin Hui heart really still Qin Hui heart?" Xia couldn't speak, and asked in a very direct tone.

Is Qin Hui Xin or not Qin Hui Heart?

What does this mean?

Netra Lague frowned.

Although Xia was unable to know Qin Huixin and Bai Yi because of his identity, this reaction was ...... Could it be that he already knew that Qin Huixin had been killed by Bai Yi?

"It seems that Qin Huixin is no longer Qin Huixin." Xia said with a smile, "You can come to this conclusion by observing your reaction and the amount of time you wait. ”

"And you don't seem to need me to answer this question, judging by your reaction, you already knew it." Nejtra replied.

"No, I'm just guessing, because I want to use the facts of this incident to prove my assumptions about what I'm going to say." The smile on Xia Fu's face quickly retracted, as if the person who was talking just now was not him.

"What assumption?"

"Just after you explained to me your theory of the brain in a jar and the flipping board, I had a very strange dream that night...... And this theory is derived from this dream. Xia couldn't bow his head slightly, and the expression on his face seemed to be a little abnormal.

Then, he looked up and looked at Naina Lago as he spoke.

"What would you think if, I mean, we all live in one book?"