It is not advisable to expand the population by waging war before one's own tribe has reached a certain level of strength.

Even if such a battle is won, there will be nothing of real benefit, and although a large number of people can be gained, because it is achieved by violent means such as waging war, the demon of hatred will be planted between the two tribal groups of each other.

Later, if you want to seamlessly merge the people of the two tribes into a community of interests, the difficulties encountered in this and the great risks that need to be taken for this are unpredictable.

And as long as a war is waged, there will inevitably be casualties, and no matter how asymmetrical the war is, even if one side wins an overwhelming victory, the victorious side will still have casualties.

And in the presence of hatred, the population gained by waging war cannot be immediately and effectively integrated with its own tribe.

On the premise that the tribe itself has lost its population in the war, it has to send special personnel to monitor and manage the prisoners of war, which is bound to further weaken the existing strength of the tribe.

The passive slackness of the prisoners of war in their labor, and the possibility of rebellion at any time, will greatly limit the productivity of the tribe.

There have always been only a thousand days to be a thief, and there is no reason to prevent thieves for a thousand days, and there are many castles that have been broken from the inside in history, including slaves and prisoners of war, so the strategy of relying on war to increase the population at this stage is not within the scope of Wang Tian's consideration.

The sheep tribe is in the upper reaches of the Tianlong tribe, and once the two tribes are at odds with each other, or if the sheep tribe is controlled by other aggressive tribes, the problem will become very troublesome.

In this case, the other party only needs to take a few simple bamboo rafts down the river, and in less than half a day, he can appear in the hinterland of the 900 acres of fertile land of the Tianlong tribe.

Even though the walls of the Celestial Dragon Tribe are strong and cannot be attacked by the enemy, the opponent only needs a single fire to destroy the food crops that the Celestial Dragon Tribe relies on for survival.

For a tribe with an agricultural civilization, being burned grain means an existential crisis for a whole year, so the sheep tribe is a greater threat to the security of the Tianlong tribe than the river tribe.

Wang Tian talked about his worries with Wu, but Wu was a little disapproving, in Wu's opinion, Wang Tian was a little too worried.

In Wu's impression, the three surrounding tribes have always been friendly and have never had any major conflicts.

Everyone seems to be on their own side, except for weddings and happy parties, they rarely interact with each other. What each tribe has, other tribes don't lack. There seems to be no possibility of war.

Wu told Wang Tian what he thought, but Wu seemed to forget that the tribe now had salt and pottery that other tribes did not have.

Any one of these is enough to attract the prying eyes of other tribes, as the so-called innocent and guilty, the combined benefits of these two things are enough to make any tribe have crazy ideas.

Wang Tian said: "Wu, have you ever thought that our tribe now has salt, pottery, and all kinds of bamboo weaving tools, which are not available in other tribes, who can guarantee that they will not have bad ideas?" ”

Wu suddenly woke up after hearing this, "Yes, any of these things are good, enough to make people crazy, and the tribe uses fishing nets and catches so much fish and meat, this meat alone is enough to become a target for other tribes to rob in winter!" ”

After Wu understood the stakes, he became anxious, and hurriedly asked: "Son of Heaven, what should we do, we can't attack others for no reason!" ”

Wang Tian smiled and said: "Wu, we are just discussing the possibility of this situation now, and it is not that they will fight now, when our own strength is not enough to protect these properties, it is a big deal that we can keep a low profile and not let others know that we have these good things!" ”

Wu thought about it and felt that what Wang Tian said made sense, and immediately thought in his heart that he must issue a gag order to everyone in the tribe tonight, and once someone reveals the tribe's biggest secret, he will be punished with the most severe: expulsion from the tribe.

This is indeed the most severe punishment ever, and there is no one.

In the primitive era, there was no way to survive by the individual alone, and public ownership in this era was the inevitable and only option, and if a person was expelled from the group, what awaited him would be a terrible night and the threat of death brought by wild beasts all over the mountains.

Even if he dodged all this and lost the shelter from the wind and rain, a cold could kill him.

"Wu, in fact, it means that we can't let other tribes know about it for a certain period of time, and in the long run, we should also vigorously recommend our salt and pottery to other tribes!"

Wu began to be confused about this again, didn't the Son of Heaven himself say it just now, can't he leak the secret? Why do you say that you want to tell everyone at this moment?

Wu does not understand the truth of this time and that time, in the long run, the emergence of pottery will be a matter of time, and the inevitable historical process will not change.

Wang Tian just took advantage of his traverser to make the pottery appear in the Tianlong tribe in advance, maybe without his arrival, Kuroko could also burn the pottery in the near future, this time may be 10 years later, or 30-50 years later, but it will always appear.

Even if the Tianlong tribe now has two sharp weapons, pottery and salt, it is necessary to make a time difference. Take advantage of the first advantage and exchange more benefits for the tribe.

For example, the population uses salt and pottery to exchange young people of working age with other tribes, and distribute them to those who have no spouses in the tribe.

The exchange of people with salt and pottery can not only achieve the population only in and out, but also enrich the diversity of genes, establish a stable blood system, and improve the quality of the population.

Wang Tian actually did not agree with the tribe's marriage and reunion as a method of improving the quality of the population.

As far as the situation around the Tianlong tribe is concerned, for a long time, only the "population_exchange" with the tree tribe, the river tribe and the sheep tribe was carried out.

While the other three tribes will do the same with their neighbors, there is still the possibility of a close spouse or even a sibling giving birth.

This kind of population reproduction method that only knows the mother and does not know the father cannot fundamentally eliminate the possibility of close relatives giving birth.

Wang Tian explained in detail to Wu the benefits of exchanging pottery and salt for the population, as well as the disadvantages of giving birth to imbeciles in the form of walking marriage.

Wu Wu's eyes lit up after hearing that he could exchange the population of other tribes for something that was not scarce in the tribe, and he didn't understand why marriage could not avoid the disadvantages of declining population quality.

But it is understandable that the exchange of populations improves the quality of the population, and the union of people from other tribes with people from their own tribe is no different from walking marriage.

As a witch who hoped that the tribe's population would continue to grow, he desperately hoped that the wall would be built as soon as possible, so that more laborers would be involved in the work of making salt and pottery, and that more things could be exchanged for more people.

The Son of Heaven also told him that as long as his tribe was not short of food, his life was richer enough than that of the surrounding tribes, and under the right conditions, he could even merge the entire population of the surrounding tribes into the Tianlong tribe.

This way of increasing the total population of the tribe by dozens of people at once shocked Wu and filled him with deep hope at the same time.

Wang Tian told Wu that this was also the best solution to solve the threat that the River tribe and the sheep tribe might pose to their own tribe.

Once the population of these two tribes can be obtained, and then the family name is used as a distinction, marriage between the same surname is not allowed, and everyone knows his father and his mother, and there is a clear record to check.

It can completely solve the disadvantages of marriage between close relatives, so that after 5 generations, marriage can also be carried out between the same surname, which completely solves the problem of the spouses of the tribe.

After thinking about it seriously for a while, although he still didn't quite understand, he decided to do what Wang Tian said.

However, Wang Tian understood that in order to achieve this step, he must first let the people of the tribe know the etiquette and shame, and know that he must abide by the rules set by the tribe, otherwise everything will be a flower in the moon mirror in the water, and this is undoubtedly a long way to go.