Ford’s early assembly line, by contrast, must have been a nightmare for his employees. Nothing about it was natural. For one thing, it required more complicated machinery that was prone to breaking down. Carrying a bumper from a pile to a stationary car was a simple and reliable process. Trying to pull an entire car chassis on a variable-speed winch system toward a worker who would then bolt on a bumper as it passed was a much more complicated way to accomplish this same step.

