LESSON 4 · Think Like a Mathematician
Logic as a Shield
Logic protects you from some manipulation. Advertisements, political speeches, and sales pitches often hide logical fallacies - false dilemmas, slippery slopes, appeals to authority. Recognizing these patterns by name gives you a better chance of slowing down before the trick works.
It is not immunity. It is a habit of checking whether the conclusion really follows from the premise.

Next time you hear a persuasive argument — in a meeting, a podcast, or an ad — pause and name its structure. Strip away the emotion and write it as if-then. Then ask three questions: Is the "if" part actually true? Does the conclusion really follow, or is the direction reversed? What counterexample would break it? Arguments that survive all three are worth your trust; the rest are noise dressed up as reason.