To think that generations can somehow learn from the mistakes of the previous ones is silly. They weren't there. What is "normal" for someone who is younger is a hell of a lot different than what is normal for an older person. This article is about multiple generations over 100 years. No one learns lessons from the experience of a previous generation unless they make a point of sitting down and studying it, and then that is just them not the whole society. The amount of information that a person in their 20s or 30s knows about anything in the 20th Century is sketchy, and a lot of it is wrong. They are too busy dealing with their own lives and the present culture to worry about Raygun and some island.