Described as 'postmodern' in wikipedia listing. How, besides that it was published AFTER modernism, does "Vineland" get called that? Besides being better than most 'savage satires', why isn't this just a comic novel of 'manners' like, say,T.C. Boyle or in the tradition of, say, "Main Street"[yes, a stretch] or even Twain, Mark that is.