David Foster Wallace got into arguments about this in graduate school, when he wanted to depict the heavily mediated space around him — subject matter his professors thought was inconsequential or un-literary. As he pointed out, he’d see hundreds of ads and commercials each day, and they constituted an integral part of his mental activity. Writing about this material gets pejoratively labeled “postmodern” or “experimental,” but what’s more “realist” than describing the physical world, even if billboards and 30-second spots replace trees and rivers?
Teddy Wayne, “An Alternate Universe of Pop Culture: A Conversation with Teddy Wayne, Author of The Love Song of Johnny Valentine.”