Dominion spread into enemy territories?

[acesman]

I haven't studied the dominion spread algorithm much either, I am playing on a large map (Glory of the Gods, IIRC) with a dominion of six in my setup. I have taken about 25 provinces and put temples in most of them. I currently have dominion of strength of 3-4 in enemy (not neutral) provinces 6-9 spaces away from any of my troops, across an ocean that I have not entered yet. I was a bit surprised, since this covers about 10-12 enemy provinces. My core area dominion is about 9.