da aferição... do princípio da realidade...

 "We know that self fulfilling prophecies don't work if they don't match the reality that the rest of us perceive. They are going to be massive prediction errors that you can't avoid. You can't only define evidence for your hypothesis and get away with the fact that all the other things nevertheless exist even if you're not sampling them. Eventually you're going to bang into them. And how we come to know that the self fulfilling prophecies are fallacious, are fantasies, is through affect. The prediction errors will result in things not actually working. If you remember, all this perception of reality, all this learning about how reality works is only in the service of meeting our needs in that reality. If you generate an inaccurate reality, you're not going to be able to meet your needs in that reality. So the needs will not be met which will generate the affects which will make you have to ultimately come up with a better model, otherwise you will not survive. And Freud spoke there of the experience of satisfaction. It's why all this cognitive perceptual stuff has to be grounded in the vital processes of the organism, which we come to know through affects."
Mark Solms