In my personal experience, the AI does not know where resources are. In a medium galaxy, I've discovered free resources where the Drengins controlled a resource just one sector away. Also, when the Drengins felled the Yor, about four resources lighted up on my map, whereupon I built a batch of constructors and grabbed them all. So.. because of Drengin warfare, I now control 70% of the galaxy's resources.
And to top it off, according to my spies, the Drengins are using 700 bc per month on espionage, which has completely grinded all their war efforts to a halt and I've caught up with them technologically-wise. I have battle ships, the Drengins do not. Life is good. But I'm rather puzzled why the Drengins kill their production and technological capacity by cranking up espionage. And since I don't feel especially destabilised, it seems to me they're using it on the Altarians or the Arceans who by now have one star system left each. Funny thing though, the Drengins made peace with the Altarians, after they threw a whole batch of battle cruisers at their home world. Are the Drengins supposed to do this?
~SDC~