I'm currently reading, among other things, the book VARIATIONS ON A THEME PARK, edited by Michael Sorkin. One essay entitled "New City, New Frontier", identifies New Urbanism and Gentrification as almost one and the same. I guess I didn't get the memo that making urban spaces livable was the same thing as "prettifying" property for the art gallery and salon crowd!
In the science-fiction classic THE INCREDIBLE SHRINKING MAN, the hero finally escapes from his house into his front yard. His once normal world is now to him a limitless universe. This, he knows, is conatined within an even more limitless universe; that of the earth in the solar system, the galaxy and beyond.
We, like the incrediable shrinking man, live in environments contained in and intersecting with other environments.