In this era, no one has experience in managing an industrial society, although Datang is still only a country that has just begun to transform into an industrial society, and the problems it has generated are also unprecedented before.

Two years ago, Wei Zheng was tired and fell ill because of the revision of some messy laws proposed by Sun Xiangfu, and retired honorably.

Over the years, he has been holding meetings and arguing all day long, and the arguments are still some things that people of this era do not understand at all, and before each argument, he has to spend a lot of time and energy to understand these things first, and then persuade others.

For example, in terms of environmental protection, there are many problems, such as the law prohibiting the cutting down of trees and fields along rivers and lakes without permission, and the people do not understand it very well.

What a beautiful field near the water! Irrigation is convenient, the land is fertile, and it is the easiest to have high yields and high harvests, so why don't you let it be planted?

Preventing soil erosion?

What is soil erosion?

It's been thousands of years, and I haven't seen the Yangtze River and the Yellow River wash away the Central Plains!

There are also cases where factories discharge sewage into rivers, which will affect the ecological environment.

What the hell does this thing know?

When the sewage is discharged into the river, isn't it all flowing into the sea, and I don't see the dead fish and shrimp in the river or the sea!

Besides, if it is not discharged into the river, where will it be discharged? You'd better arrange one!

That is to say, Datang now uses fewer chemicals in various industries, and even dyes are generally made of plant raw materials, which basically will not affect the ecology, but the metal problems are a little difficult to solve.

Moreover, the first thing that needed to be stopped and rectified was the Imperial Court's Weapons Research Institute, which had a workshop for manufacturing lead shells, and there was collective heavy metal poisoning, which even affected the staff of several surrounding workshops.

Sun Xiangfu is not omnipotent, after going to various places to farm, he can't take care of many new problems in society at all, and even the extent of various research projects, he doesn't know much now.

Therefore, Li Ke asked about some industrial matters, and he was not good at giving any future planning arrangements, but agreed to go to various industries in Weinan tomorrow to have a look.

I haven't been shopping in Chang'an City for a long time, and more than ten years is enough to change the people on the street, but in fact, not only people, but also the shops on the street, and the houses in each square have also changed greatly.

Since the high-rise buildings were built on the side of Buzheng Fang, the real estate of each square began to spring up like mushrooms after a rain, five to seven floors are available, taller, and even standing in Li Shimin's imperial study, you can only barely see its roof, you know, Daming Palace is built on the Longshou Plain, and the foundation is more than ten meters high.

The people are willing to live in this kind of building, and the imperial court will basically not restrict it, anyway, such a centralized dwelling is better managed than the original wooden house built in the alleys and alleys, and after replacing it with a reinforced concrete house, the fire probability of Chang'an City has been reduced I don't know how many times, in the era when there are not so many combustible decorative materials, it is safe, warm, clean, and comfortable, and it comprehensively surpasses the wooden house.

Take a casual walk on the streets of Chang'an, at least you can see more than a dozen people of different nationalities or races, don't think that they are outsiders, they are locals who hold Chang'an's household registration, many of them are rich people and nobles who moved from the Western Regions, and more are ethnic minorities from the four sides of the Tang Dynasty, who came here to work, and then settled down and moved their household registration.

Including the palace maids, there are many ethnic minorities from the original Silla, Goguryeo, Wazhou, or Qiuzi, Gaochang, and Khotan, and they are the only ones who are more willing to do this kind of work that is easiest to get a household registration in Chang'an City.

It is said that there are now more than 100,000 ethnic minority families in Chang'an City alone, twice as many as in the Kaiyuan period in history, and the permanent population with household registration in Chang'an City also exceeds 2 million, not counting foreign merchants and migrant workers who have not obtained household registration.

It is also a shame that so many high-rise buildings have to be built in the city, and more than 2 million people need to live in an area of more than 80 square kilometers, and it is definitely not possible to afford buildings, but soon, there will be no need to be so crowded.

Because the residential houses and population in the suburbs outside Chang'an are too dense, and they are no longer weaker than the population density of some cities, Li Shimin and Li Chengqian both feel that they need to expand, and construction has already begun.

After the whole construction is completed, people who go south and north do not need to go out of the city to the Weishui Wharf, or see off the Baqiao, because the new city wall, in the direction of the north, is directly repaired to the coast of Weishui, to the east, it is repaired to the coast of Bashui, to the south, it is to reach the Qinling Mountains, and to the west, it almost includes Xianyang.

On the concrete new city wall in the north and east, you can directly see Weishui and Bashui, and the wharves of Bashui and Weishui are directly at the gate of the city, and the ships can get on and off the goods and go directly into the warehouse, which is very convenient.

Outside the South City Gate, there is Qinling Shenlin Park, Jiangjun Mountain, Zhongnan Mountain, you can directly see the overall area, which is more than five times larger than the original, and it may not be impossible to live 10 million people in the future.

If Sun Xiangfu knew about this before the construction began, he would definitely stop it.

Why build the city walls? Directly like Weinan New Town, if you don't build the city wall, isn't it good to expand indefinitely?

Of course, in this world, only Sun Xiangfu will have such an idea, because, ordinary people, seeing the city wall to include their own houses, will be more secure, Weinan New Town, that is because it is mainly used for industry, need more smooth transportation, and unlimited expansion, so do not build the city wall.

The unification of Eurasia is imminent, Li Shimin and his son, very much want to make Chang'an City the center of the world, so its scale will be the undisputed first majestic in the world, just like the Daming Palace, which is the size of 500 football fields and no one can visit in one day.

However, even in a city with a population of more than two million like this, Sun Xiangfu did not see hurried, anxious, indifferent and other emotions in people, but more calmly, calmly, and serenely.

Passers-by walking on the street, when they meet a guy in the shop on the street who recommends the products in the store, they will stop and look at it and discuss the price, and if they don't need it, they will also nod and say, 'Thank you, I don't need it'.

The guys who get the replies from the passers-by are basically not dead, but will smile and say, 'It's okay, come back when you need to'.

Such a street atmosphere is much more harmonious and warm than that of later generations, and the quality of the people may be formed gradually by the upward and downward effects, or perhaps because of continuous exploration, discovery, and exercise, in a harmonious society, all talents are more likely to harvest and be satisfied.

"It's been so many years, I've finally seen you on the streets of Chang'an, let's go! Went to my house to drink, and last month, Ruyan gave birth to a son again. ”

Cheng Chumo, who was full of beard, happened to find Sun Xiangfu on the street, he was traveling in a five-wheeled rickshaw, and there were many tonic products bought in Times Square in the carriage.

"I'm not in the mood for a drink, so let's just find a random place to sit on the street! If your concubine is in a hurry to take supplements, let someone send things to the house first! Sun Xiangfu smiled and said.

Now, he also has a long beard, although he is not as long as Cheng Chumo's face, but his upper lip is pruned, and a large pinch on his chin is half a foot long.

"There are a lot of these things at home, not bad, but these specialties of Liaodong, if you sell slowly, you won't be able to buy them, and if the goods arrive, I have to buy them in person, so I can get more, no way, there are many people in the family!"

Cheng Biting Jin is not dead, the seven brothers of the Cheng family and the more than a dozen mixed-race sons of Cheng Biting Jin who have not entered the family tree cannot be separated, except for Cheng Chuliang, who lives in the princess's mansion, everyone else is a group of wives and concubines, a large number of children, and there must be hundreds of people.

And now, the privileges of the nobles are getting less and less, not like before, saying hello, there are good goods, and the merchants are only supplied by these noble tycoons.

Now there are many rich nobles in Chang'an City, everyone spends money, eats tonics, and Times Square is a royal property, selling top goods, that is, Cheng Chumo, a young grandfather with a real job, is personally present, and the shopkeeper can sell him some face, if he sends a housekeeper and servant casually, no one will buy his account.

According to some incomplete statistics, in Chang'an City, there are now more than 100 people with the title of king. The national duke, the county duke, at this level, at least two or three hundred. Above the marquis, nearly a thousand, a street to the end, casually you can meet a few high-ranking nobles, just like the streets of Beijing in later generations, any bicycle, maybe the director of the department or something.

You must know that in the past five years of the Tang Dynasty, dozens of kingdoms have entered, and there are more than a dozen people like Songtsen Gampo who have been awarded the title of the two-word grass head king, and before they began to pass on to the next generation and lower the title, the duke is not the top nobles of Chang'an.

Because, in addition to these grass kings, dozens of Li Shimin and Li Yuan's sons are also adults, and those who have not been released as officials are all in Chang'an City, and they have placed palaces to live, but there are a lot.

Not long after, the two sat down in a milk tea pancake shop on the street, Cheng Chumo knew that Sun Xiangfu didn't like to listen to him talk about the bullshit in his family, but if he really didn't talk about this, then he wouldn't be Cheng Chumo.

"Recently, my father was looking for someone to paint a portrait of himself, and he had to paint himself handsome and chic, and when someone painted it, he said that the person in the painting was not him, and he injured several painters, what do you say should be done!" After sitting down, the milk tea in the store has not yet been served! Cheng Chumo began to say with a sad face.

Cheng bites the gold goods, saying that he is strong and rude, and it is also counted.

Say handsome and chic! This word has nothing to do with his demon face, he must have learned it in the play.

Sun Xiangfu smiled when he heard this, "Why, your father is not dead yet!" Do you want to enter the Lingyan Pavilion? ”

Cheng Chumo nodded and said, "Who said it wasn't!" I think he is just idle and has nothing to do, tossing blindly, didn't he retire at the beginning of the year, he wanted to go to the military academy to teach, Wei Gong and Yue Gong didn't want him, saying where the students, even they can't teach, it's useless for him to go, but my father doesn't believe in evil! Then, after staying there for half a day, after returning home, there was no longer any mention of teaching at the military academy. ”

Cheng Yanjin is fifty-three years old this year, and he has long exceeded the retirement age of military generals of his level for eight years, seeing that the last two years are about to reach the age of retirement, Li Shimin will not send him any more practical tasks, if he continues to occupy the position of a group army general, it will not be good, this is to hinder the people under his command from ascending to the position, after all, everyone is limited by the retirement age, so he took the initiative to give up his position.

But when he really gave way, he realized how boring Wei Chi Gong, who retired a few years earlier than him, if it wasn't for Yu Chi Baolin to stop him, it is said that the old man was going to find a few warlocks to refine the elixir at home, but when he went to the military academy, he really couldn't teach anything.

Previously, Wei Chigong also talked about himself for being bored once, and obediently went home, its sixteen-character tactics can be explained in five minutes in the classroom of the Military Academy, and the students still understand them all.

The students over there are all learning physics, learning mathematics, learning to play with cannons, learning to fly steamboats, hot air balloons and the like, as well as medical emergency knowledge, astronomical and meteorological knowledge, okay! None of them understand, but nothing they don't think is powerful.

Those students can actually control the latest cannons, and for the places that are not very clear to the naked eye two or three kilometers away, they are in a hurry.

Fortunately, these things did not appear on the battlefield twenty years ago, otherwise, those enemy troops who fought with horses and lances and long knives probably didn't even see what the Tang army looked like, and they were directly killed.