communications

According to Bitzer, whats the rhetorical situation and what does it tell us about how persuasion works?
For Goodnight, what are the personal, technical, and public spheres of argument?
Goodnight makes a little case for a decline narrative, arguing that something is bad/gone wrong with our public argumentwhy? What does he point to as the reason and do you agree with his assessment?
Finally, take a moment to reflect on contemporary public argumentwhere do you think it happens? Why? Does it reflect the conditions of the public, private, and/or technical sphere and in what ways? Feel free to bring in specific examples here of public argument/contemporary persuasion to help illustrate your point.