Unicorn cities keep resurfacing because we’re addicted to the idea of perfection. Big money loves clean slates—no messy zoning, no politics, no public input. But cities aren’t problems to solve; they’re relationships to understand. Jane Jacobs saw that sixty years ago while Robert Moses chased order from above. Today’s tech billionaires are just building newer versions of his highways—only vertical, glassier, and algorithmic. The lesson hasn’t changed: cities fail when they forget the chaos that keeps them alive, and the people who make that chaos beautiful.