The edge of legibility
By 1911 Picasso and Braque had faceted the world so finely that their pictures hovered on the edge of pure abstraction. A portrait of a girl with a mandolin still has a shoulder, a breast, the curve of the instrument — but they float in a haze of overlapping planes, and you have to assemble the figure the way you assemble a face out of television static. Historians call this the hermetic phase, meaning sealed, nearly airless. The two painters got nervous enough about it that they began smuggling clues back in: a stencilled letter, a scrap of sheet music, the rope-weave of a chair — little handrails so a viewer would not float off the picture entirely.
The public meets Cubism — without its inventors
Here is the strange part. The two men who invented Cubism barely showed it in public; Kahnweiler sold their work privately, mostly to foreign collectors, which kept the prices steady and the scandals to a minimum. So when Paris finally met “Cubism” as a public outrage — at the Salon des Indépendants of 1911, the big open exhibition that, unlike the official Salon, had no jury to keep anything out — the room that became notorious as Salle 41 held no Picassos and no Braques at all. The walls were a thicket of brown-gray planes, tilted faces and faceted figures by a second wave of painters: Albert Gleizes, Jean Metzinger, Fernand Léger, Robert Delaunay and Henri Le Fauconnier, all French, all in their twenties and thirties, who had picked the idea up secondhand. Crowds jeered, newspapers cried anarchy, and a movement neither founder had named or hung became front-page news.
It was the perfect modern story: the laboratory builds the bomb in private, and the public first meets it through the people who carried it out of the building. Those carriers — the Salon Cubists — get the next chapter, because they did the one thing Picasso and Braque flatly refused to do. They explained themselves.
Picasso, asked late in life whether he had set out to demolish perspective, only shrugged. He had been trying, he said, to paint what he knew was there — not merely the sliver of it that one eye reports from one spot. The revolution, in his telling, was just honesty about how looking actually works.