I would like to ask why I am able to concentrate reading a book when there is complete silence, or as well when it is the complete loud chaos - but not in situations inbetween. I managed to isolate my self from the outside world in a constipated train where crying babies and discussing students were evaporating. I managed as well to ignore what was happening in the striking airport sitting on the floor or a busy waiting spot. Or, I was reading listening to the silence of the living room in a winter evening, when no cars drive on the iced road and no birds fly.