skipped an archetype like time before last?

[Kinser79]

PBR, there is no such thing as a failed crisis. Every 4T in history has been resolved at some point. Often through a war or civil war. Sometimes not. Often with economic calamity, but sometimes not. War and economic hardship do not in themselves indicate one is in a 4T. Indeed in the so-called American High of the 1950s there was not one, not two, but four recessions. There was also a very bloody war--though most people seem to have forgotten about it these days.

The point of a 4T is that it ends the saeculum. This is an inevitability. I believe that the current 4T will fizzle out setting the stage for the Mega Crisis which is a whole saeculum long and will end approximately in 2100.