We were done with walled towns. For hundreds and hundreds of years, the countryside was peaceful, safe, except when there was a war. And good thing, because we couldn’t have fit inside the walls, there were so many of us.
None of that’s true anymore.
We started with a stockade wall, whatever wood we could chop down, and once that was up we set to work cooking bricks. We haven’t had a breach since before you were born. I remember thinking how awful it would be, all of us living in this little area; but now, it’s the whole world.