Do random things.
I'll admit, those still seem like basic enough AI extensions. Perhaps that's not the problem though, I can see how creating yet another level of AI interaction would make Radiant AI a much, much more complex piece of software. I would expect an exponential increase in required resources for each 'layer' added. And at some point you're going to have to draw a line between what is realistic and what actually has an effect on the way you experience the game anyway.
Heh, I can see how they might start building Radiant AI Processing Units in the near future. Hello Dave.