"Two centuries ago, our forebears would have known the precise history and source of almost every one of the limited number of things they ate and owned. They would have been familiar with the pig, the carpenter, the weaver, the loom and the dairymaid. The range of items available for purchase may have grown exponentially since then, but our understanding of their genesis has grown ever more obscure. We are now as imaginatively disconnected from the production and distribution of our goods as we are practically in reach of them, a process of alienation which has stripped us of opportunities for wonder, gratitude and guilt."
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While I am drawn to the romantic nature of this statement, there are certain realities that make this impractical as a wide spread ethos. For furnishings and clothes it is a possibility, though the financial shift from mass produced to bespoke would come as a shock to most save those with hardened wallets. But you get what you pay for and bespoke items will in most cases last longer.
Food is easier, and most likely a lot healthier. Home grown or locally produced.
However, move beyond these and look at base level of technology behind our daily lives. It can only exist through a specialist modular design approach.
One person, not even one localised team of people, could build design and build a modern computer, TV, medicine, car and so on.
All rely on either prior advancements and research, 1000's of man years of work; or parts that are so complex that they require their own specialist team to design and build. Or a collection of both.
I'm not saying you couldn't build a simple car from scratch even to the point of moulding you own tyres. Same for computers (though you'd need imported components) or complimentary/herbal/refined medicine. In fact I have high admiration to those that can and do, but there is a point at which further advancement requires specialisation.