Commitment thresholds must be binary — 'done' or 'not done' without interpretation space — to eliminate rationalized partial compliance

Why This Is a Rule

Ambiguous completion criteria are the primary escape route from commitments. "I'll exercise regularly" — did you? "Well, I walked to the car..." Ambiguity creates interpretation space, and interpretation space is where rationalization lives. The mind, looking for reasons the commitment was met, will find them in any ambiguous criterion.

Binary thresholds eliminate interpretation: either you did it or you didn't. "30 minutes of elevated heart rate exercise" is binary — there's a number, a physiological criterion, and a duration. "I walked to the car" doesn't meet it. "I ran for 32 minutes at 140bpm" does. The threshold does the enforcement that ambiguous criteria leave to (unreliable) self-assessment.

The threshold must not require interpretation to evaluate. "Good enough quality" requires interpretation (rationalization opportunity). "Passes the spell checker with zero errors AND all sections have at least 200 words" does not. At evaluation time, the criterion either holds or doesn't — no gray area, no "well, it depends," no sliding scale.

When This Fires

• When defining completion criteria for any commitment (A commitment contract needs five elements: behavior, schedule, completion criteria, duration, signature — missing any = preference, not commitment)
• When existing commitments feel like you're "sort of" meeting them — the criteria are ambiguous
• When rationalizing partial compliance ("I did most of it...") — tighten the threshold
• Complements A commitment contract needs five elements: behavior, schedule, completion criteria, duration, signature — missing any = preference, not commitment (five-element contracts) with the binary-threshold quality standard

Common Failure Mode

Gradient criteria: "I'll eat healthier." At what point is "healthier" achieved? The gradient allows any improvement, no matter how trivial, to count as compliance. Binary alternative: "No processed sugar Monday through Friday. Weekend: unrestricted." Now each day has a binary evaluation: sugar or no sugar. No interpretation needed.

The Protocol

(1) For each commitment, write the completion criterion. (2) Apply the binary test: "Can someone who has never met me evaluate whether this criterion is met, using only the criterion and observable evidence?" (3) If the criterion requires judgment, interpretation, or subjective assessment → rewrite until it doesn't. Convert "good quality" to measurable specifications. Convert "regularly" to "X times per week." Convert "better" to a specific threshold. (4) The final criterion should produce identical evaluation results regardless of who applies it — you, your accountability partner, or a stranger. (5) When tempted to soften a criterion ("most days" instead of "5 out of 7") → that softening is creating the rationalization space that will undermine compliance.