Afforess
The White Wizard
it appears that flexible difficulty isn't working right now as i've met all nations (checked world builder to make sure and had it on 50 turn changes and was on top for 100+ turns with no change also tried 40 and no change on 5 i got it to change once strangely 2 turns after putting it on 5 on turn 667 and then it didn't change again tried 1 and got an immediate change however no more changes in difficulty afterwords. haven't not changed any other flexible difficulty settings although i did turn it off at the beginning of the game only to turn it on later
It scales for gamespeed. It's 50 turns, normal speed, but 100 turns for epic, 200 for snail, 400 for Eternity.