Li Shimin heard that the combat effectiveness of the Arabs was stronger than that of the old army of the Tang Dynasty, and this was without a staff system and no firearms. But they are still stronger than the Twelve Guards, which has to worry Li Shimin. This is a big force, and Li Shimin finally paid attention to it. Judging from the current situation, Westerners are definitely not something to mess with, nor are they soft persimmons. In the past, the Central Plains Dynasty regarded the Western Regions as barbarians, which was obviously a big mistake, not only were they not barbarians, but there were many civilizations. Li Shimin did not suspect that Jingwen was making it up, because as long as you inquire about this kind of thing carefully, you can find out. There will be some differences, but they will never be huge. Therefore, Li Shimin also recognized the West.

"Okay, let's not talk about it in the West, let's talk about something else. Like, what are we going to the northeast? That's where the legendary Su Wu shepherded sheep, what exactly is there? Is it really a barren land? Li Shimin asked.

Jingwen also immediately explained: "Our northeast, which is further north than Goguryeo, is indeed a barren place. However, there is also a large area of black soil, which is very fertile black soil and is able to grow food. However, the only pity is that it can only be planted once a year. ”

"Isn't one season enough?" Li Shimin said indifferently.

Jingwen only then reacted that the food of this era is just one season. The famous Champa rice in middle school textbooks has not yet been introduced, and it is already very normal to have one season a year, and Li Shimin does not feel any difference.

"However, it is a vast area, very rich in resources, and there are a lot of precious minerals. I won't talk about all kinds of rare ores, I'll talk about steel and copper ore. There are 8.9 billion tons of iron ore here, and our Datang steel is currently able to produce more than 1,000 tons of steel every year. Jingwen said.

Jingwen said that this statement was actually said by later generations who had seen the steel ore reserves in Siberia, Russia. Datang currently produces more than 1,000 tons of steel per year. This is not without purpose. Because the steel production of the Tang Dynasty was not high, there were very few places where steel was needed in ancient times, and steel in ancient times was mainly needed for war.

Although everyone doesn't know where Jingwen's "ton" unit came from, it is not unusual to hear that Datang produces more than 1,000 tons of steel every year. In this comparison, we can know the quantitative relationship between them. Now, there is a lot of steel in this place.

"So much steel? It's enough for me to use Datang for hundreds of thousands of years! I have enough steel in Datang, not so much. Li Shimin said with a smile.

Li Shimin obviously didn't really pay attention, because there was too much steel and it didn't need that much. But. Jingwen was about to correct Li Shimin's idea.

"Your Majesty, you can't count your accounts like this! Although my Datang is currently only producing more than 1,000 tons of steel every year, the minister might as well bet with the emperor that in a hundred years, the annual steel needs of my Datang will be more than 10,000 times that of now. When the time comes, will the emperor still think that our domestic steel ore is enough?

Li Shimin was a little surprised, he didn't know why Jingwen would say this, a hundred years later, he would actually reach 10 million tons of procurement? And Li Shimin didn't know. Because Jingwen is confident that he can bring about the butterfly effect changes, after a hundred years, it is not a big problem to enter an industrialized society. So, when that time comes. China's local steel is not only not too much, but too little.

"A hundred years from now, we can't control it!" Li Shimin sighed and said.

Jingwen found that Li Shimin did not have much interest in steel, because steel was not a much-needed resource. And Jingwen immediately thought of another.

"Your Majesty, there is also a copper mine there. There are more than 20 million tons of copper ore there, and my Datang now produces only a few hundred tons of copper every year. If we have these copper mines, then I'm afraid we can let go of copper production. Jingwen said.

When Li Shimin heard this, his eyes immediately turned patina. The Tang Dynasty was not short of iron at present, but Yan zhòng lacked copper. Copper mines are mainly used to make copper coins, but now Yan zhòng is short of money. China has been a copper-deficient country since ancient times, and copper mines are mainly used to mint money. Because of the lack of copper mines, many dynasties restricted the use of copper ware. Even, in fact, ancient bronze ware is stricter than gold control. Copper represents wealth, so Li Shimin's eyes are green. Copper ore is also the most empathetic and the most direct feeling of wealth in ancient times.

"With these copper mines, Datang is enough to use it for thousands of years!" Li Shimin said excitedly.

But Jingwen immediately said: "Your Majesty, there will be more and more places that need copper in the future, so these are not enough at all!" ”

"Is there a copper mine anywhere else?" Li Shimin asked.

Since ancient times, China's demand for copper ore can be said to be hungry and thirsty, so as long as there is copper ore, it is extremely concerned. There will almost never be a shortage of markets for copper ore in China. Therefore, Li Shimin is very concerned about copper mines.

Jingwen continued: "If there is anywhere else, it is the south. In the south, this island holds more copper than that in the north. ”

Jingwen pointed to this place in the Philippines and sued Li Shimin.

"What's more, the climate here is warm, and the grain can be cooked three times a year, as long as there are these islands, it is enough for the lives of billions of people in my Datang. With these grains, then my Datang is enough to be stable and peaceful almost forever, and will not rebel for the sake of food! What's more, these places have no owners, and they are all wilderness. Jingwen said.

Li Shimin heard that it was three crops a year, which shocked Li Shimin even more. In a grain producing area with three crops a year, the Datang is enough to stabilize dìng for many years.

"Hey, it's too far!" Li Shimin said.

Now there is not much pressure on the domestic population, so Li Shimin has no pioneering ideas. And Jingwen is also a little helpless, now Datang has not much pressure, so he will not have the idea of pioneering. Next, the one that can only be guided slowly can let Datang have a pioneering mind.

"Now, I finally have an understanding of our world." Li Shimin said.

Everyone heard Jingwen popularize geography to them, and they also had a general understanding of what the world is like. They didn't know that Jingwen didn't list the Americas, otherwise they would have been even more surprised. Jingwen is just a rough world record at the moment. (To be continued......)