Now I'm raging because I can't remember the name of it, but there is a theory claiming that generations are cyclical with 4 different cohorts, from the heros to

Now I'm raging because I can't remember the name of it, but there is a theory claiming that generations are cyclical with 4 different cohorts, from the heros to the lazy, and etc. I'm sure someone here will no what I'm vaguely talking about :) Edit: Strauss–Howe generational theory