Thomas Edison (1847-1931) — Integration specialty. American inventor and businessman whose laboratory at Menlo Park (and later West Orange) was the first industrial research facility in history — a deliberate institutional engine for converting discovery into patentable technology. Edison's personal contribution was less about discovery in the strict sense than about integration at scale: he assembled teams of engineers and scientists who did the laboratory work, organized the patent strategy that protected the resulting inventions, ran the publicity apparatus that made those inventions famous, and built the manufacturing and licensing networks that turned the inventions into products. The phonograph, the practical incandescent light bulb, the motion picture camera, the carbon microphone, the alkaline storage battery — all of these emerged from Menlo Park, and Edison's name is on all the patents because he had built the system that captured the discoveries. The contrast with Tesla is the chapter's contrast: Tesla was the discovery specialist working alone in silence; Edison was the integration specialist running a factory of discovery. Both were necessary. The integration specialty is what turns inventions into civilization. Edison is what it looks like when the integration specialty runs at industrial scale.