Okay, so you extrapolate a gloomy future from a snapshot of the tech? I remember dozens of such articles from the early days of the web.

Subtractive processes have advantages? It's pretty obvious that at some point these devices will be able to run additive and subtractive process in whatever sequence you like.

This stuff is so complex that only a few currently understand robust design? All the better to hatch a million designers in garages all over the world.