Advertising Fallacy Toolkit

Advertising is a masterclass in applied logical fallacies, and the bandwagon fallacy may be the slipperiest. It drives every "best-selling" and "most popular" claim, yet the number of buyers tells you about marketing effectiveness, not product quality. The worst-selling book in a library might be the most valuable, and the best-selling supplement might be sugar in a capsule. Popularity measures how well something sold, never whether it works — so treat "#1" as a fact about the ad budget, not the product.