How Progress Hums Between Steel and Steam
The flicker of the screen lit Joel Mokyr’s face at five in the morning—half-awake, coffee cooling beside him, pale blue light from his inbox reflecting off his glasses. The subject line simply read Congratulations. He blinked, rubbed his eyes. “I had a whole list of people that I thought were going to win… and I wasn’t on it.”¹
Outside, Evanston was still dark, the quiet before the hum of morning traffic. Inside, a single notification had tilted his world. For half a century, Mokyr had been asking one deceptively simple question: why did some societies break free from stagnation while others remained trapped?
As a young historian in the archives of Amsterdam and London, Mokyr leafed through guild manuals and inventories, fascinated not by what was invented but by how knowledge traveled. The Industrial Revolution, he liked to say, wasn’t a miracle of machines but “a revolution in conversation.” He spent years piecing together those exchanges—letters between craftsmen and philosophers, pamphlets scrawled in Newton’s margins, apprentices’ notebooks that crossed hands and borders. Some nights he left the archives with ink on his cuffs and more questions than pages answered. Knowledge, he found, didn’t bloom in isolation. It multiplied when shared.
In that pre-dawn glow, Mokyr could almost hear those old correspondences whispering again—the murmur of an eighteenth-century workshop meeting the ping of his modern email. The lineage of innovation, stretching across centuries, had just looped back to him.
Across the ocean, in a Paris apartment lined with books and fashion sketches, Philippe Aghion’s phone began to vibrate against the kitchen counter. He hesitated before answering, thinking it might be a student or one of the late-night policy calls that still found him. His mother, Gaby Aghion, had built Chloé on the belief that freedom was the seed of beauty. “I grew up with innovators,” he said later. “She had a vision of free, of emancipated women.”²