Drawing on Longaker and Walker, pp 50 - 80
Developed further by discussions in ENGL 3179/5179
To focus on the presentational quality of an enthymeme, ... look at how the material is presented. What does the [audience] see ... first? What does the argument present as its [inferential] conclusion? To focus on the ideational quality of an enthymeme, ... look at its underlying logic. What does the [audience] understand as the evidence? What should the [audience] conclude based on this evidence? (55-6)
To analyze the presentational quality of an enthymeme, ... consider inference as a feature of the rhetor's style. The rhetor caps a discussion ... by giving ... a focused, summative, and usually emphatic statement.... [T]hink of this as the enthymeme's form, [a] stylized gesture of drawing the conclusion. ... In effect, [the] presentational enthymeme summarizes and pulls together in one emphatic statement the ideational substance of the proceeding paragraphs ... and configures it in a particular way to generate a particular conclusion... (57)
When it comes to presentational enthymemes, then, we can borrow the reasoning:
the presentation of an ideational enthymeme can be capped by a visual presentation, a kind of gesture of drawing a conclusion. The presentational enthymeme cap pulls together ideational substance implicit in the page and configures it in a particular way to generate a particular conclusion.
In a website, caps might be
- clicking a link
- arriving at the target of a link
- showing an image
- making an image larger ...
- others ...
Or a cap might be a planned encounter with a message.
A cap draws together or orchestrates other materials that the audience is encountering so that that material functions as an argument. The cap, that is, directs a viewer place a claim in relation to data and lets the viewer infer a warrant, reasoning that connects the two.