Five years ago, Modernism/Modernity, “the quarterly of the Modernist Studies Association, ran a review essay of the writer David Foster Wallace’s story collection Oblivion. The essay was a put-on, a leg-pull, a sham, in ways that take some explaining for nonspecialists in recent American fiction. But no one publicly called attention to the con until last month.” In the meantime, some grad students mistook it for the real thing.