All media work us over completely. They are so pervasive in their personal, political, economic, aesthetic, psychological, moral, ethical, and social consequences that they leave no part of us untouched, unaffected, unaltered. The medium is the message. Any understanding of social and cultural change is impossible without a knowledge of the way media work as environments. All media are extensions of some human faculty - psychic or physical.
Marshall McLuhanWhen people become too intense, too serious, they will have trouble in relating to any sort of social game or norm. Perhaps this is why jokes are so important. On one hand they tell us about where the problems and grievances are, and, at the same time, they provide the means of enduring these grievances by laughing at the problems.
Marshall McLuhan