Is there a real need to have paper over plastic at this point? So many things now require a plastic piece. Not seeing where paper is still being used to retain records or utilized for gaskets… I suppose cardboard but even then not much has changed in that tech.

3D Printers that are turned into Pen Plotters is also a neat project.

At that point we might as well have an identifier on every person that produces content…

Tracking dots originally associated with laser colour printers used yellow. Some use shades of gray and other techniques associated with the laser. Inkjet can’t get to the resolution of a laser. So probably not a need to worry.