I do not think we should use television as the measure of all attention spans. I have heard people of all ages listen for hours as a speaker or two gives them stories, harangues, and marching orders for their various causes. And they would listen for every word.

Could it be that the attention span problem for sermons is that the setting is too much like a television-viewing setting that calls for passivity? If the church became a movement again, and if we felt a life-and-death urgency about getting the message out and getting it right, we would probably not be discussing how long we should go on.