So then how have irony, irreverence, and rebellion come to be not liberating but enfeebling in the culture today’s avant-garde tried to write about? One clue’s to be found in the fact that irony is still around, bigger than ever after 30 long years as the dominant mode of hip expression. It’s not a rhetorical mode that wears well. As [Lewis] Hyde. . .puts it, "Irony has only emergency use. Carried over time, it is the voice of the trapped who have come to enjoy the cage." This is because irony, entertaining as it is, serves an almost exclusively negative function. It’s critical and destructive, a ground-clearing. Surely this is the way our postmodern fathers saw it. But irony’s singularly unuseful when it comes to constructing anything to replace the hypocrisies it debunks. This is why Hyde seems right about persistent irony being tiresome. It is unmeaty. Even gifted ironists work best in sound bites. I find gifted ironists sort of wickedly funny to listen to at parties, but I always walk away feeling like I’ve had several radical surgical procedures. And as for actually driving cross-country with a gifted ironist, or sitting through a 300-page novel full of nothing by trendy sardonic exhaustion, one ends up feeling not only empty but somehow. . .oppressed.
David Foster Wallace