>>> CAD systems did not replace engineers. It did replace draftsmen and designers, and changed the work that the engineers do. It's now more efficient to let e

>>> CAD systems did not replace engineers. It did replace draftsmen and designers, and changed the work that the engineers do. It's now more efficient to let engineers be their own draftsmen and designers. And design work has changed -- a lot less "hard" quantitative engineering, and a lot more "bureaucracy in three dimensions" as things have gotten more complex.