I don't get it... We could very easily take a bunch of 70's photos from the US and juxtapose them against current photos and make it just as shocking. We could

I don't get it... We could very easily take a bunch of 70's photos from the US and juxtapose them against current photos and make it just as shocking. We could take current photos and juxtapose them against each other to much the same effect. We could probably also take photos of normal people today and juxtapose them against weirdos from the 70s to draw the opposite conclusion. Is this hacker news because it has photos of Asian girls? What makes the author think that the photos of stewardesses in the 70s is representative of appearances? Are idol girls representative of current appearances? Tastes in physical appearance change over time and we are seeing selection bias. Seems like a "Get off my lawn!" article.