Making Walls Flow
Before Borromini, the walls of a building were mostly straight and flat. He made walls undulate in and out like waves, continuous and rolling, so the whole space seemed to flow, to breathe. On tiny plots he built dizzying, complex geometry. His contemporaries thought him a heretic, yet three hundred years later, when the Zaha Hadids made architecture twist and flow again, people remembered: Borromini had done just this, back in the Baroque.