Psychologically, we hear what we wan to hear. The wife said to the husband, I told you to bring home milk. The husband did not bring home milk. He thought she said something else. We assumed Vader said Luke. We could not understand his voice. We just assume a lot. When you stare at like white paper with a black dot, the dot disappears after a while. You can slowly boil frogs to death, gradually. I love this. Thanks for the post.