> All complexity is operational complexity. Uh, what? Example to illustrate the difference: Automatic transmission in an automobile, operationally simpler th

> All complexity is operational complexity. Uh, what? Example to illustrate the difference: Automatic transmission in an automobile, operationally simpler than the manual constant-mesh trans it broadly replaced: Driver (AKA the Operator) selects drive or reverse when stationary, no need to participate in gear changing while in motion. Substantially more complex in implementation in exchange; go look at the hydraulic valve body of your average slushbox. Manual trans: Simple implementation, single clutch assembly, sets of gears selected mechanically by axially sliding dogs on splined shafts. Operationally complex since the driver must continuously participate in the selecting of gears and clutch operation while in motion.