Quote Originally Posted by Mechalich View Post
It doesn't mean small islands at all. I said 2-3 million kilometers for a setting/region. That's a big area, like the size of Argentina, which is the 8th largest country on Earth. And if you look at Argentina, you can that's it's surrounded by natural geographic barriers: ocean to the east and south, a giant and nearly impassable mountain range to the west, and forests to the north (though this one has been opened up by land use changes in the modern era). The world produces very real 'walls' at a large scale.
I just started thinking about the Ringworld...