The thinking at the time was driven by greenery: you take the early industrial urban density that was a lifeless (except for humans) city of stone, but stack th

The thinking at the time was driven by greenery: you take the early industrial urban density that was a lifeless (except for humans) city of stone, but stack the humans a few times higher to open up room for trees and birds and perhaps a little pond. Everybody gets their own window to nature, as if they had a cabin in the woods! That's how their reasoning went, but humans aren't that easy to fool.