>Where are the truly innovative 'Industry 4.0' factories producing individualized spare parts on demand by means of 3D-printing, or whatever, to only exchange d

>Where are the truly innovative 'Industry 4.0' factories producing individualized spare parts on demand by means of 3D-printing, or whatever, to only exchange degraded components of truly modular appliances? Or cars? Hopefully that's the next step, but it looks like legislation will need to force their hands. It already somewhat started with some manufacturers though (i.e.: https://frame.work/ https://frame.work/ for laptops).