Re: Technological unemployment is (almost) here
I hope to the time when tech unemployment will hit hardly 3D-printers will evolve enough to print complex metal structures (i.e. rifles, pistols, SAM missiles to destroy drones etc) and be affordable for the masses. Elites will think again before starting the war. 
funny you should speak of 3D printers that can print metals and ceramics; in my second year of university I created a startup and seeked funding to build a prototype DMLS 3d printing device to be used for mass production, in the end we weren't able to get funding but the tech is viable and if I had the money I'd be able to do it today. Oh well