How to write a persuasive message
Suppose you must write a message that you want the recipients to believe. Of course, your message will be true, but that is not necessarily enough for people to believe that it is true. It is entirely legitimate for you to enlist cognitive ease to work in your favour, and studies of truth illusions provide specific suggestions that may help you achieve this goal.
The general principle is that anything you can do to reduce cognitive strain will help, so you should first maximize legibility. Compare these two statements:
Adolf Hitler was born in 1892.
Adolf Hitler was born in 1887.