Editorial Policy

Editorial principles

• We write for readers who want to understand the numbers, not just copy a conclusion.
• We avoid sensational claims such as “guaranteed profit,” “safe win,” or “sure lock.”
• When a model depends on assumptions, sample size, or imperfect inputs, we state that plainly.
• Calculator pages should explain what the output means, what it does not mean, and when to be careful.
• Guides are revised when a better explanation, example, or correction becomes available.