The idea of some kind of objectively constant, universal literary value is seductive. It feels real. It feels like a stone cold fact that In Search of Lost Time, by Marcel Proust, is better than A Shore Thing, by Snooki. And it may be; Snooki definitely has more one-star reviews on Amazon. But if literary value is real, no one seems to be able to locate it or define it very well. We're increasingly adrift in a grey void of aesthetic relativism.