The document discusses issues that can arise from using abstract terms in software requirements that are difficult to visualize. It notes that abstract terms like "furniture" are harder to imagine than specific terms like "kitchen table" as there is no shared understanding. When people think, they focus on a small percentage of details and forget most information, so abstract requirements provide nothing specific to focus on. It recommends removing abstractions from requirements and replacing them with more concrete language that is easier to visualize in order to avoid potential issues from differing interpretations of abstract terms.