Moving on to 5-axis (and beyond) machining, that CNC stuff and their cutting speeds around the curves - very smooth as blades through water can easily make bubbles ... very bad.
Just pause, however, and ask "Just where is the workforce, a trained workforce, to populate these "returned" factories? And just who will be training these people?
Just askin' - as the seed corn has been eaten, and as with shipping your backlog, you only get to do that once.
There is no going back.
The military is our best labor pool. Factories made to be exported to third world countries can be brought back. It is a matter of willingness.
There is no going back.
There is going forward.