After Wenren Sheng saw the relocation plan, the preliminary work began.
The first step was to build a wall near the present-day Dongshui City.
Fortunately, productivity was advanced. Otherwise, this wall really would not have been easy to build.
The wall was neither too high nor too low, with a planned height of eighteen meters—high enough that ordinary people would find it difficult to climb over.
Its foundation would be five meters deep, preventing people from easily digging tunnels to get out.
Of course, this could only guard against most people. If someone truly insisted on going out to see the world, they would definitely discover something unusual.
But it did not matter if they found out. They could simply be taken away, and then either stay or leave.
After all, this was not some evil laboratory.
The wall would be built in a circle centered on the city center, with a radius of two hundred kilometers.
That distance was enough to cover the living range of the vast majority of people in the city.
Of course, outsiders would never know that this had been calculated entirely based on the daily routes of Wenren Sheng's family, much like how many major human units of measurement had actually been based on the length of some body part belonging to a specific person.
Building such a wall was naturally an enormous undertaking. It could not be completed without several years of work, considering it was a high wall with a circumference of more than twelve hundred kilometers.
Naturally, the benefit of a major project was that it solved a massive number of employment problems.
For a time, finding work became much easier. If nothing else, people could take temporary jobs at construction sites, with transportation provided both ways.
Meanwhile, Excavator School became