You missed the point about "open source", or information sharing. With the right machines and a library of shared knowledge, you don't have to be an expert at everything.
But if people actually strived for it, and their lives began in communities where building, maintaining and operating your own machinery is a part of life, most people could actually actually know heck of a lot about them.
But if people actually strived for it, and their lives began in communities where building, maintaining and operating your own machinery is a part of life, most people could actually actually know heck of a lot about them.