Does anyone else see a pattern?
We go through a period of War and/or tenseness (10's, 40's, 80's)
Then a period of peace/prosperity (20's, 50's, 90's)
Then a period of hell/corruption/war (30's, 60's, 00's)
And then normal/filler decades (70's, possibly 10's or 20's?)
The 70s were probably more tense than the "morning in America" 80s, 1910s "WWI" I would hardly call a "filler decade." The 20s and 50s are peaceful only for a certain segment of the population. And to compare the 60s to the 00s is laughable. These kind of cyclical decade models are always absurd, and always break down.