The assignment: a four-to-six paragraph essay on The Fall of the House of Usher. A student asks if she can refer to Poe's life to help her discuss the representation of women in the story. At first, I thought I would just say "intentional fallacy" and give her some background on the issue, but then I started thinking about things in more pragmatic terms. So here's what I wrote to her:One way to think about this is in terms of how you would present such an argument. In this case, you have about five paragraphs, with about three of them being body paragraphs. Suppose one of your body paragraphs is about the biographical point. Then you have two paragraphs to discuss the story. If the discussion of the story is convincing without the biographical paragraph, then you can toss out the biographical paragraph and have another paragraph about the story. If the discussion of the story is NOT convincing without the biographical paragraph, then you have a weak, two-paragraph discussion of the story ... (There are also less pragmatic, more theoretical reasons to be careful about the author's biography when doing a scholarly study of a work of literature. These theoretical issues are usually summed up in the expression "intentional fallacy.")