People like this have never been common - probably only a vanishingly small proportion of any generation. The trades have always been seperate skillsets becaus

People like this have never been common - probably only a vanishingly small proportion of any generation. The trades have always been seperate skillsets because any one of them takes a long time to become proficient in. I do wonder about the electricity grid though. That seems our biggest weakness to me. And I get overwhelmed when I think about how many people and machines it takes to make even the simplest thing we use these days. I mean, how do we make something like a mobile phone? If you want to help avoid the collapse of civilisation, take up model engineering as a hobby :)