Daniel D'Addario Chief TV CriticParis has long been the staging ground for a particular sort of American fantasy, one that tends to bring the characteristics of Americans into sharp relief. In the final episodes of “Sex and the City,” to cite one example, Carrie Bradshaw attempts a warm embrace of all the City of Light has to offer, but finds that she may in fact be too warm, that the cool briskness of Paris is making her someone she does not recognize.