The City of Parentheses

The architecture of this city is nested. Every structure is contained within another, wrapped in curved walls like embracing arms ( ). The logic of the city is functional; nothing changes state, everything is immutable.

To build a house here, you do not lay bricks; you evaluate a function. The language of the city is Lisp, a tongue of infinite lists and recursive dreams.

"It is elegant," the guide says, "but you must keep track of your closing brackets."