Yeah, I don't know, my first game was Soyuz poly-oz standard and while very enjoyable, it wasn't very challenging. I won with mindflower on 251 turns.
So for my second game I decided to go up to Appollo on a pangea map (one of the ones from the map pack - nice purple colour) - and given the reports of dozy AI and my own experience in the soyuz game didn't bother with much of a military - four units in total. Which, I admit, was kind of asking for it. I got jumped by the ARC roundabout turn 100.
So...the lesson from this, despite all this talk about a passive AI, don't drop your good habits from Civ V.
And if you want to get into a fight, don't build too many units - or hide them.