I still remember the graphic I was shown 35 years ago, where you could fit all the inhabitants of the world into a plot of land the size of a large Texas county without touching each other.
That picture has only increased slightly in 35 years.
There are still scads of land, 100’s of millions of acres, which are completely without population in the world. And that’s arable land.
It’s not just the land. It’s the water and its availability to land that can be built on.