As I said, you can't just make stuff out of thin air.All anybody would need is their little printer and that can have all the material goods they desire.
Material inputs can be controlled at every stage. You don't even need to emplace any new systems, just extend whatever exists today for the raw-material supply-chain.
Also, these devices are inherently more complex than either paper-printers or printing presses. I doubt a large proportion of the population will quickly learn how to maintain the devices. And replacement surely can't be as easy as with, say, a $50 inkjet. If a commercial model is developed that is both large enough to print a wide variety of whole objects or modules, and small enough to fit within a typical garage or shack, it likely will never cost less than whatever the equivalent worth of your average car today is.
Let's be honest: outside of large-scale manufacturing, 3D-printing will have little direct impact besides permitting hobbyists to print plastic trinkets. A very few will be using them to build up customized vehicles for fun. No one will printing advanced electronics in their homes. No one will be printing organs or animals outside specialized institutions.
If we're looking out for socially revolutionary technologies, then neurocosmetic surgery and omnipresent surveillance systems backed by powerful computer algorithms are better candidates.
Bookmarks