Use the terms “above the line” and “below the line” to establish which level a conversation is on. An above-the-line conversation addresses the main points and a below-the-line conversation focuses on the sub-points. When a line of reasoning is jumbled and confusing, it’s often because the speaker has gotten caught up in below-the-line details without connecting them back to the major points. An above-the-line discourse should progress in an orderly and accurate way to its conclusion, only going below the line when it’s necessary to illustrate something about one of the major points.
