CONCEPT
From Inventor to Manager
Thomas P. Hughes's structural law: every large technical system passes through a phase change in which the skills, values, and figures that built it are replaced by those equipped to operate it at scale—and the transition is never merely organizational but a change in what the system optimizes for.
Edison kept notebooks. Not the kind that accumulate on a desk but the kind that constitute a continuous externalized record of a mind moving between problems at radically different scales within a single day: the molecular chemistry of bamboo filaments on one page, the question of whether New York insurance underwriters would approve his wiring standards on the next. This capacity—which Thomas P. Hughes called system sight—is the defining trait of the
system builder at the formative stage of a large
sociotechnical system. But every system that succeeds outgrows the builder. Samuel Insull, who took control of the Chicago Edison Company in 1892, could not have designed a generator or calculated a voltage drop. What he could do was organize: rate structures optimized for load management, regulatory strategies that positioned the utility as a natural monopoly, financial architectures that leveraged predictable revenue to fund