" The world of the Takers is one vast prison, and except for a handful of Leavers scattered across the world, the entire human race is now inside that prison. [...] Naturally a well-run prison must have a prison industry. I'm sure you see why."
"Well... it helps to keep the inmates busy, I suppose. Takes their minds off the boredom and futility of their lives."
"Yes. Can you name yours?"
"Our prison industry? Not offhand. I suppose it's obvious."
"Quite obvious, I would say."
I gave it some thought. "Consuming the world."
Ishmael nodded. "Got it on the first try. "

― Daniel Quinn , Ishmael (Ishmael, #1)