As far as I can see reading this, most people here confuse photo realism with realistic and beautiful details, a painting can be very beautiful, full of details and realistic but never photorealistic :-)

As far as I can see by now true photorealism can be achieved in most CG with no human figures, I've seen very realistic CG humans a lot of beautiful humans, but I'm not shure absolute and real photorealism can be achieved by now, and I'm quite shure not in poser.