Back in college, a professor of mine talked about cycles and used the NASA boom of the '60s as an example. When it ended, engineers just abandoned their houses

Back in college, a professor of mine talked about cycles and used the NASA boom of the '60s as an example. When it ended, engineers just abandoned their houses in Cape Canaveral and moved back to their hometowns. I wish I could remember more of that lecture; all I remember is him describing a 7-year boom/7-year bust cycle with the NASA example as an example of how suddenly a boom can end.