I don't think all poems need to be written in conversational language - those are often great poems but there should also be poems of incoherent bewilderment and muddled mystery.
Matthea HarveyS. E. Smith's I Live in a Hut has a deceptively simple title, considering that the brain in that hut contains galaxies-worth of invention: At night when your soldiers are praying ceaselessly for less rain and more underwear my soldiers make underwear out of rain. These poems seesaw between despair and delight but delight is winning the battle. Smith is a somersaulting tightrope walker of a poet and her poems will make you look at anything and everything with new eyes: For days I tried to rub the new freckle // off my hand until I realized what it was / and began to grant it its sovereignty.
Matthea HarveyI don't think that you can say by any stretch of the imagination that all Wisconsin or Brooklyn-based poets write in a particular way. Similar sensibilities can spring up next to each other in the flower bed, or across oceans.
Matthea Harvey