A novel can often be expanded upon when adapted to a different medium such as film; but to go the other way, and reduce a rich texture of different elements to mere words adds nothing new, probably takes away from the original even.
Although perhaps somewhat narrow-minded of me, no examples immediately prove otherwise.
...dot com bold typeface rhetoric. You go clickety click and get your head split. 'The hell you look like on a message board Discussing whether or not the Brother is hardcore?
