I don't think that's accurate.. I took heat when I first became an executive because of my vocabulary.. even my father took me to task.. and he was a great speaker.
I got beat up again by the chairman of the board who accused me of the same thing. The success of the communication belongs to the speaker.. and unless its industry jargon that is widely understood by your audience.. 300 words a minute at an 8th grade level is the way to go.
Trump speaks at a 5th grade level and his thought stream is extremely discombobulated.
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