Why is it impossible to argue with parlor walls

It is impossible to argue with the walls because the walls have immediate control of your thoughts.

"Off-hours, yes. But time to think? If you're not driving a hundred miles an hour, at a clip where you can't think of anything else but the danger, then you're playing some game or sitting in some room where you can't argue with the fourwall televisor. Why? The televisor is 'real.' It is immediate, it has dimension. It tells you what to think and blasts it in. It must be, right. It seems so right. It rushes you on so quickly to its own conclusions your mind hasn't time to protest.