The game is, how small can you make a general engineering factory? You could do the shipping container version now, using existing prototyping tech and some we

The game is, how small can you make a general engineering factory? You could do the shipping container version now, using existing prototyping tech and some well thought out robots to move parts between processes. I suspect you can get most of them in one box though, and this will be becoming mainstream within ten years to fifteen.