The article is making a prediction about the future and technology normally improves with time. Your example implies that you think we'll be stuck with 1mm reso

The article is making a prediction about the future and technology normally improves with time. Your example implies that you think we'll be stuck with 1mm resolution and with deposited ABS plastic. I think 3D printers of the not so distant future will finely weave textiles. Amongst other things.