Repetition => Belief

The toddler and I often debate whether something is a whale or a shark. It makes people who know me well happy that I have a personality mini-me. Often, these descend into:

Fleur: shark
Me: whale
Fleur: shark!
Me: whale!
Fleur: shaaaaaaaark!
Me: whaaaaaaaale!

This got me thinking about persuasion and the effective use of repetition. We tend to overlook it because we think that simplistic things we know and understand are reasonable. And frankly, the only way it could be. They are facts. Objective. The way things are. However, repetition has a sneaky way of becoming things we know and establish in our heads as facts. This is the Illusory Truth Effect messing with us.