[@Mercenary Lord] Honestly I would stray away from having the "outsider" role namely because I'm not all to comfortable pushing the lid that far. Plus, given the sheer size of the Wals being anywhere between that of a small state to a small nation, you can imagine the size of the fucking parking lot and how you aren't going to see anything. 

As for where things come from, thats all part of the mystery that no one has time to really look into, not even the Roofers. Its said that they spend their entire time acting as tribal nomads, always on the hunt for drinkable water. Hell, a Roofer might not be the best fit even the fact that both the Roofers and the rest of the Departments see the other as myths because of such little interaction. I'm sure you could make it work though, but it would have to be a pretty special case.

In my head, its that robots managed to take over all the jobs/missing jobs well enough to feed and supply everything with the Stockerbots restocking shelves and stuff. And yes, I think that many, many generations has passed. You don't have normal people suddenly turn into tree worshippers or the FabGlams of Makeup Department in even two generations, that shit takes a long ass time. Culture don't develop instantaneously and give the permeates and the strength of said cultures, I takes its been a really long time.

Glad you're enjoying the setting though! :sun