Maybe the biggest advancement in societal development is the idea that in some ways, many ways actually, non-development is the most advanced form of development.
I think we are at an in between stage of development. Some tech but basically primitive tech. Like we have cars, but they are not capable enough to go over most surfaces, so we have to pave over where ever we want to go. Advanced tech would be putting us in more pleasant and natural environments but able to summon a cat bus https://totoro.fandom.com/wiki/Catbus for transportation. And have unobtrusive medical treatment things around in case they are needed. But trees and animals and so on on the surface. Tree houses, sure, but not interstate highways. Floating cities, why not. First we need energy, then we need safe nanotech and then we need a mechanical understanding of biology.