I just wanted to post a quick thought on this.
It seems to me that this cycle isn’t something that’s been happening hundreds and hundreds of times. I think it’s just a reference to a few cycles, and why the Final five were so desperate to stop the colonials from repeating it.
Cycle: 1
On Kobol, Humans create the 13th Tribe, the Cylons
The Cylons go to Earth, the Humans go to the 12 colonies
Cycle: 2
The Cylons on Earth Create artificial life of their own, those cylons rebel, and there’s a war.
The FF head to Earth to warn the 12 colonies (12c).
Cycle: 3
Humans on 12c create artificial life, those cylons rebel.
I don’t know if Pythia was a Cylon herself, or a Lord of Kobol, but I think it’s possible that Pithia traveled to the 12c from Earth and delivered her writings to the colonials. This is backed up by the evidence we’ve seen of structures on Earth illustrated in Pythian prophecy.
Just a theory of course. Any thoughts? Anything completely obvious I’m missing?