Up until now, this back-channel has been mainly confined to the Internet industry and technology conferences. But certainly, the next time I teach or present, I will be more aware of laptops in the room, and whether I can harness the power of Twitter during my time with my audience or class to improve their experience. Macro results.

The earlier piece had some introductory background on the main rhetorical techniques. We remain the most prosperous, powerful nation on Earth. Its power to generate wealth and expand freedom is unmatched, Puzzle-solution. They understood that our power alone cannot protect us, nor does it entitle us to do as we please.