Personally I don't think you can ever really have a consistent lore for anything if you get multiple people working on it. Or really even with one person. The way I see the Fallout universe is this: humanity never invented the transistor so there was no way to shrink the size of things like computers. However, they were able to master nuclear power easier so that led them to become resource hogs. While they may not be able to make an iPod, they are able to make a laser rifle. Every other nation in the world aside from the US and China fell apart due to lack of resources. Even then the last two super powers were tottering on the edge of collapse. Near the end China invaded the US to grab the last easy access oil. The US got power armor and started to push China to the mainland. Then the Great War happened, and it all ended. I think some of the incorrect lore could be attributed to a lying author. There was a major war and 200 passed so there is no real first hand accounts and those that exist are colored by the ideals of the people who wrote them. It could also be that they are trying to clean things up. Sometimes when you start a project you aren't thinking down the line. To me its why Star Wars often doesn't make sense. Lucas was looking at making maybe the trilogy at best and didn't expect things to go as deep as they did. While I agree things should be a bit more advanced than they are now, I can see why progress has been stunted. The lore, and common sense, say that a nuclear winter followed by a radiated rain caused a massive extinction. Living without modern technology is hard enough, but trying to do so with all of the plants and animals you know of dying off too makes it even harder. Getting wheat to grow is hard; trying to get it to grow with radioactive water is harder. Even forgetting radiation poising there are tons of diseases out there to kill you. Let's not forget that the flu is and was a dangerous killer of humanity. The flu that followed World War 1 killed 50 to 100 million world wide; World War 1 killed 17 million. I do get why there is so much junk lying around unlooted. The city of Boston is obviously not to scale. If you have modern day Boston (population about 650,000) and kill off 90% of the population its going to take a long time to loot. Since you're now surviving in what amounts to little better than a pre-Industrial Revolution period your population will grow slowly. Pre-Industrial Societies didn't grow fast and while there is some technology around that might help, the hazards of the Wasteland might kill you off early. Overall I agree that the places where people live should be nicer, with at least the holes in the walls patched up. But the patches of human civilization will be small and scattered with the remains of the great cities on the horizon.