This has actually been on my mind lately and I've been looking for statistics, from Denmark, but haven't been able to find any going back far enough. My assumptions is that we in the late 1940s through the 1950s had achieved a reasonable standard of living, but perhaps not available to all. Even if we assume that everyone in a country has access to the same, high, late 1950s standard of living, but applied modern tec…
Well I can answer one question for you. There are studies that show that better insulation only briefly lowers the energy use. Once people adjust to the new insulation they end up heating or cooling their houses more since in their mind it is cheaper, but they end up using the same or more energy. https://www.cam.ac.uk/research/news/insulation-only-provides...
although maybe i'd get bored and run the heater and the AC at the same time