A "strict rule of thumb" is an oxymoron. By definition, a rule of thumb is a general principle or guideline that doesn't offer a precise or unwavering method. The term rule of thumb implies flexibility and approximation, whereas strict suggests rigidity and precision. Therefore, the phrase "strict rule of thumb" is contradictory and doesn't have a coherent meaning. A rule of thumb is inherently not strict.
Here's a breakdown of why the phrase is contradictory:
- Rule of Thumb: A practical and easily learned procedure or guideline, often used for estimation or approximation. It's based on experience and common sense, rather than scientific accuracy. Rules of thumb are meant to be adaptable to different situations.
- Strict: Adhering precisely to rules or standards; rigorously enforced or followed. It implies no deviation or flexibility.
Therefore, combining these two terms creates a self-contradictory concept. If something is a strict rule, it's likely a defined procedure, regulation, or law, not a rule of thumb. A rule of thumb offers general guidance, not strict instructions.
Instead of using "strict rule of thumb," consider alternative phrases depending on the intended meaning:
- If you mean a guideline that should be followed closely, but still has some flexibility: Use terms like "strong guideline," "highly recommended practice," or "best practice."
- If you mean a rigid and unyielding rule: Use terms like "strict rule," "regulation," "law," or "mandatory procedure."
In summary, the phrase "strict rule of thumb" is internally inconsistent. Rules of thumb are, by their nature, not strict.
