>5. Do their thing very quietly without anyone really knowing. 6. You've never heard about. I love going to industrial estates and checking out what is going

>5. Do their thing very quietly without anyone really knowing. 6. You've never heard about. I love going to industrial estates and checking out what is going on in there for this exact reason. CNC machine, 3D printing, endless engineering all of which will never be appreciated or create a fan boy cult but they will keep many, many other businesses operational and growing. These places actually build things too, real tangible things that have requirements and so forth.