"You wouldn't download a $physicalObject, would you?" has been an annoying meme for quite some time.

Every year, that meme is becoming closer to reality. You can already download small plastic objects. And I look forward to the day when I can torrent a pirated Tesla to my garage :p

Imagine what the film Apollo 13 would have looked like with a fast 3D printer on board. Instead of trying to shoehorn a square CO2 scrubber into a round hole using all sorts of stuff that was never designed for the job, Houston could have sent them a perfectly designed adapter.