People moved through a twisted sculpture of iron extending for miles underground.
At certain times of day, different personna emerged.
The people who designed it had a name for the transitional spaces that connected different levels or different lines.
They called them "mixing boxes." In fact, the whole thing was a giant mixing box.
In other cities, and in the satellite suburbs, you could go from the car inside your garage to
the garage inside your office building without ever seeing or connecting with another person.
Here, contact was taken for granted.