"No, it shouldn't be. ”

The next second that this thought flashed through his mind, he was vetoed by Li Kai himself.

Because the earliest pottery not only appeared in China during the Neolithic period, pottery was found in almost all ancient civilizations around the world, although only China fired porcelain on the basis of pottery, but it has nothing to do with what Li Kai thought.

But Li Kai still couldn't help but open his mind, what if his conjecture was true, what if it was really taught to primitive humans by him and then spread out?

At this time, he couldn't help but think of a famous theory: the paradox of space-time.

The space-time paradox, also known as the grandmother paradox, was proposed by Stephen Hawking and refers to the theory that if a person goes back in time and kills his maternal grandmother, then the person who killed his maternal grandmother will still exist.

If a person does go back in time and kill his own grandmother before she conceives his mother, whether the time traveler himself will ever exist is a question of the space-time paradox.

And if he killed his maternal grandmother, and there would be no birth of this intertime traveler's mother, then would this person who went back to the past still exist, and who would kill his maternal grandmother?

Li Kai couldn't help but wonder if he was in a paradox of time and space, if the pottery technology was really taught to primitive humans by him, and he was not in a parallel world, but in a real prehistoric period, then who invented the earliest pottery technology?

Li Kai can't think of an answer to this question for the time being, because the world has not found any traces left by him yet, so it is impossible to confirm whether he is in the real prehistoric world.

In fact, Li Kai had asked the system this question a long time ago, but the system did not give any reply, as if it had sunk into the sea.

"Forget it, what's the point of thinking about this now, maybe it's just that I'm thinking too much, after all, it's just pottery, and it's not such a complicated process. ”

After half a ring, Li Kai shook his head, which had a headache because he was thinking too much, stopped thinking about this, and put his gaze back in front of him again.

At this time, Wu Ya and Batu were still staring at the pottery fired in the bonfire, and they did not notice Li Kai's distraction.

"Don't wait, there's still a few hours left to finish, let's rest. Li Kai pulled Batu up and gestured to him.

After Batu understood, he immediately translated Li Kai's meaning to his sister, and Wu Ya had no choice but to withdraw his gaze.

However, she was obviously very happy, and actually smiled happily at Li Kai, her white teeth and a sense of lightness, which made Li Kai stunned for a moment, Wu Ya seemed to be a lot closer to him.

"Wow, Miss Primordial smiles so sweetly"

"Brother Xiaokai is using the excuse of burning pottery, but he is actually looking for an opportunity to get closer to his sister paper, phew, scumbag"

"I've learned, and the new skills of flirting girls get √!"

"Upstairs, you can pull it down, you learned this skill to be useful"

"That's right, now sister, if you don't have money, you have to be beautiful! If you look ugly, don't say burn a pottery for others, even if you burn a terracotta army, it's useless."

"Hmph,I believe there must be a girl in this world who likes to be inside.,╯^╰"

"Hahaha, that's right, the good-looking skins are the same, and the interesting soul is one in a million, so ...... I'll choose the good-looking, interesting soul or leave it to more people who need it."

“... I'll go upstairs to your sister."

A group of viewers didn't know that Li Kai's brain was open, and after Wu Ya smiled, he was suddenly shocked and discussed lively.

......

Primitive people do not eat three meals a day like modern people, they only eat one or two meals a day, probably because of the unstable food source, their diet is not regular, about ten o'clock in the morning, a primitive person came to inform Li Kai and the three of them who were hanging out that they were going to eat.

Of course, Li Kai did not refuse, and went happily with Batuwuya, although the food made by the primitive people was very palatable and not clean, but since he didn't have to work, it still felt very good to reach out to the food.

Soon the three of them came to the place where they were eating, a cave with a large internal space, where the primitive people of the entire tribe had gathered, and the primitive people of this period generally worked, ate and rested in groups.

After entering the cave, Li Kai saw the shaman with a deer's head on his head at first sight, and the shaman also happened to be looking at him, not knowing what he was thinking.

"She doesn't suspect me of soaking her daughter, and then draw me a circle and cast a spell. Li Kai teased himself.

However, after coming to the cave, the three separated, Li Kai and Batu found a corner to sit together, while Wu Ya sat in front of his mother, from Batu's analogy, Li Kai learned that Wu Ya was not only the daughter of a shaman, but also the next shaman of the tribe.

Thinking that Wu Ya would have a deer head on her head in the future, with scary paint on her face, Li Kai felt weird and wanted to laugh.

Without waiting for him to think about it, the food was ready, handed to him and Batu by a primitive man, still roasted mammoth meat.

Although the food prepared for the Black Sword Tiger is also mammoth meat, it is obviously much more rigorous, and it is served with animal skins, and the portion is very sufficient, enough for the Black Sword Tiger to feast.

However, the Black Sword Tiger was obviously a little appetizing, and the tiger glanced at Li Kai with resentment, and seemed to want to eat the cooked food grilled by Li Kai himself more than the bloody raw meat in front of him.

In this regard, Li Kai could only cough dryly and pretend not to see it.

The surrounding primitive people ate quickly, and Li Kai also followed the rhythm and ate this meal quickly, but he found that after eating, the primitive people did not disperse, and there was a circle of people around the female patriarch of the tribe, both men and women, and there was no shortage of elders, who seemed to be discussing something.

It is not difficult to guess that Li Kai thought about it and thought that they should be discussing the issue of migration, with the sudden change in the weather, the beasts have left, and this area is cold and freezing, and it is no longer suitable for human survival.

But judging from the petroglyphs in the cave that have been invaded by the years, the Tushi tribe has been living here for at least several decades, and many primitive people can't help but be a little dazed and hesitate when they are asked to leave here in a hurry.

Even Batu and Uya are no exception.

In the eyes of Li Kai, who is a modern person and knows that it is the outbreak of the last glacial period at this time, the Tushi tribe has indeed reached the point where it is indispensable.

Staying here will not only end them with harsh conditions, but they will also have to endure hunger for a long time, after all, hunting mammoths is not an easy task.

It is likely to lead to the death of many primitive people.

However, as an outsider, Li Kai naturally couldn't interject on the major issues faced by the primitive tribes, and he watched with great interest, and didn't talk much, believing that they would make the right decision.