Changing Course

Needs Royal Court. Divergence cost scales with how much of your parent culture you control, so the trick is controlling almost none of it: any duke-tier vassal of the Byzantine Empire holds a tiny sliver of Greek culture and can diverge at game start if they change only the ethos. Culture window, Diverge Culture, confirm - minutes. The sibling of Converging Paths, and the same mechanic later powers Nobody Comes to Fika and Beta Israel.