To what extent does "The Swimmer" express some form of postmodern fiction?

According to R. Stevenson, et al, the elements of
post-modern fiction in literature include the following
characteristics:

• playfulness
  with language


• experimentation in the form of the novel
  


• less reliance on traditional narrative form
  


• less reliance on traditional character development
  


• experimentation with point of view
  


• experimentation with the way time is conveyed in the
  novel


• mixture of "high art" and popular culture
  


• interest in metafiction, that is, fiction about the
  nature of fiction
  

In Cheever’s
"The Swimmer," there is no doubt that the way Cheever treated the passing of time
between the swimmings is essential because it also brings out the theme of the
inevitability of change. It is also non-traditional in terms of narrative, which is a
characteristic of post-modern fiction. Also, the use of pop culture in the form of the
snobby, rich, white, preppy character almost gives us a discomforting sensation that we
are surrounded by very hip, but very dislikeable people.  The language is also used
without restraint, as we see the use of expletives galore, and there is no traditional
character development: Neddy is arrogant, continues to be arrogant, and will remain in
an arrogant denial about what happens to him all until the end. There is no roundness of
character development, and there is no lesson to be learned. Things just are what they
are. That is the most important aspect of post-modern literature, and all of its
elements are very much present in the story.