It is like they say about selling.
“Don’t try to sell the unsellable.”
I mean, persuasion is more of an art than a science – you can’t force someone to decide a certain way – you can just tilt the odds in your favor.
The point is not to waste your time on people that have already decided.
And people who believe you are not effective anyway.
Before you start any persuasion technique, you want people wanting you to talk them into it.
PERSUASION TIP 16: It is easier to persuade a person who believes you are persuasive.