I don't disagree with this review, but: "They serve as shibboleths among the characters, used to establish their cred." And what does using the word "shibboleth" here do other than establish your cred, and act as a marker for who "gets" what the word means and is used for and thus gets to be in the "in group"? (And…

For some reason I have the (false) memory that the Forrest Gump soundtrack reached #1, but, nope, it peaked at #2. Pretty neat.