The notion of cities condensed into a singular structure or hyperstructure, has frequented works of fiction as far back as 1899 with H.G. Wells, When the Sleeper Wakes. The concept garnered wider attention seventy years later when Architect Paolo Soleri published, Arcology: The City in the Image of Man. Massive self sustaining habitats, the pliable infrastructure and small ecological footprint of arcologies avoid the damaging, inefficient urban sprawl of today’s cities and suburbia.

I'm sure they would be efficient, but would you really want to live in them?

no way I think it would be awful actually - a giant city packed into a space like that seems horrific....I'm thinking in my lifetime, I'll probably never have to make that choice...

It seems very science-fiction like; concepts of a very futuristic society!