These are the official lengths according to S&H:
Gilded: 21
Progressive: 17
Missionary: 22
Lost: 18
GI: 24
Silent: 18
Boom: 18
X: 20
Millennial: 23 (with the new 2005 date for Homies as per Howe)
The average length of a Generation (as according to these stats) is 20.111 years.
It seems the pattern: the dominant generations last longer than the recessive generations.
When we factor to include cusps, the cores of generations come out to be between 12 - 14 years long. With Nomad/Civic being the longest of the cusps (8 years) and Adaptive/Idealist being the shortest of the cusps (about 4.5 years). Idealist/Nomad: 6 years and Civic/Adaptive: 6 years.
So a cusp is generall is 4 - 8 years long, with the average length of a cusp being 6 years.
~Chas'88
Last edited by Chas'88; 11-27-2010 at 11:24 PM.
"There have always been people who say: "The war will be over someday." I say there's no guarantee the war will ever be over. Naturally a brief intermission is conceivable. Maybe the war needs a breather, a war can even break its neck, so to speak. But the kings and emperors, not to mention the pope, will always come to its help in adversity. ON the whole, I'd say this war has very little to worry about, it'll live to a ripe old age."