We've had a few decades of evolutionary pressure for cubicles and open offices... modern results might surprise.

This. I hate travel, I get 26 days of vacation a year. I'll take a week off at a time and sometimes not leave the apartment at all over the course of 8-9 days, or even look out a window for that matter. I imagine I'm far from alone.

And when I went aboard U-505 recently, my first thought was "I could totally live in here", a fried that went aboard her with me agrees that we could both happily live on a sub/spaceship/bunker for extended periods.