Egyptian pharaohs were only able to build the pyramids because of their mastery of administrative procedures, which then allowed them to develop production line techniques, dividing up complex tasks into dozens of simple operations and assigning each to one team of workmen—even though they lacked mechanical technology more complex than the lever and inclined plane. Bureaucratic oversight turned armies of peasant farmers into the cogs of a vast machine. Even much later, after actual cogs had been invented, the design of complex machinery was always to some degree an elaboration of principles
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