Recently, I read an editorial from a magazine dated December 1974. It described the dying year as one 'in which we all looked back and yearned for the sixties'. Now, it seems people have been yearning for the 60s for most of my life. But were they really yearning for only four years after they'd bid them goodbye? Supposedly, 1974 was the year of energy and political crises in the western hemisphere and this may have fueled the early nostalgia. But what sustained it to give it its incredible longevity? Any ideas?