There is no definition of computer games.
There in no such thing as art games. Games are art.
Gameplay is not the opposite of storytelling.
Graphics, music and level design are storytelling.
Mediocrity is not balance.
Abstraction is a tool. Only specificity gives meaning to art.
Interactivity is not abstraction.
Meaningful art is enjoyable. An unpleasant game is not deep, it is unpleasant.
The tools of game design are profane, the purpose divine.
There is no General Theory of Game Design.