Writers and artists have always been self-conscious consumers and filterers of experience, saving it and using it for artistic purposes later on. Perhaps Facebook and Twitter and Instagram incline more and more of us to respond to our experiences as only artists once did — perhaps in that sense the optimistic view that all of us are becoming creators is really true. Though whether that’s a good thing or not, whether the moment tends to get lost in the anticipation of its digital representation — that bears thinking about…