My thoughts on the basic motives & purposes of poetry after the movements of the 20th century can be juxtaposed with these interesting remarks at Boston Comment. As Kent Johnson & Stephen Burt in particular pointed out, the demand to innovate originates, not entirely but to some degree, in a political stance. One could say that literary innovation and difference, as we have come to know them, have two roots: first in what I described before as the attempt to catch up with contemporary historical change, and secondly in the notion that literary "experimentalism" (as opposed to simple experiment) marks the boundary of political opposition to mainstream institutions or allegiances.

If one accepts the notion of the poetic word as harmonizing a duplex form of time & reality, then the first motive for innovation noted above has to be revised. I'm not sure how such a poetics applies to any specific political stance.