01 What it is
People often find it easier to react to an existing opinion than to form one from scratch. “Tell us your favourite cake” takes a moment of thought. “Should red velvet be above carrot cake?” gives the brain something concrete to challenge.
A myth next to its fact works the same way. The ad states a belief the reader may hold, then corrects it, so the reader is reacting to something concrete and gets a usable rule in return.
The ad supplies the opinion. The audience supplies the correction.
02 How to spot it
A belief or ranking put in front of the viewer to push against: a myth box, a tier list, a hot take.