What is symmetry, and what should guide a speaker's efforts to achieve it?

What will be an ideal response?

The best answers will:
1. define symmetry as "using a balanced approach to developing and presenting ideas in a speech so that each ideas is developed with a similar level of elaboration." Outstanding answers will explain that symmetry is important in demonstrating that a speaker has done thorough research and is doing due-diligence to the topic for the listeners.
2. use critical thinking to provide advice for achieving symmetry, such as:
• doing thorough research
• acknowledging that some points may require slightly more emphasis than others, but that there should be a general sense of balance
• choosing fewer main points, to explore in greater depth, than many, sprawling points that will only then receive minimal treatment