henry copeland:

Pitch perfect: Strategic language use maximizes the chances of influencing an audience: Researcher determines pitching strategies used by influential entrepreneurs -- ScienceDaily

The study found that entrepreneurs who successfully influenced their audience often implied a point without actually making it when talking about the future; they encouraged their audience to fill in the blanks. "The audience becomes engaged, they start becoming a part of the argument, they actually even complete it, so they're more likely to be convinced by it," Dr van Werven said.
- www.sciencedaily.com