Science fiction is the cutting edge of literature. A sci-fi writer won the Nobel Prize in 2007; Philip Dick and Frank Herbert were the foremost writers of the 50s and 60s, in terms of pushing the envelope, along with only Beckett on the proper literature side.
Well, sure, and I wouldn't be reading SF periodicals if I didn't agree. However, in terms of poetry, it's not really cutting edge at all. In fact, most of it is miserable. Exhibit A: Bruce Boston.
