Classify every decision as one-way or two-way door before deliberating — minutes for reversible, days for irreversible

Why This Is a Rule

Jeff Bezos's one-way/two-way door framework addresses the most common decision-making error: spending one-way-door time on two-way-door decisions. Most decisions are two-way doors — reversible, low-stakes, and correctable through iteration. Spending days deliberating about which project management tool to use, what font to put on a website, or whether to accept a meeting invitation treats reversible decisions as if they were permanent.

The classification must happen before deliberation begins because deliberation itself creates commitment. Once you've spent three hours analyzing options, the sunk cost makes you take the decision more seriously than it deserves. By classifying first, you set the time budget before the analysis begins — and the budget matches the actual stakes.

The time allocation follows a rough scale: freely reversible decisions (can undo in minutes) → decide in minutes. Reversible with friction (can undo in days to weeks) → allocate hours to a day. Partially reversible (significant cost to reverse) → allocate days. Irreversible (cannot undo) → allocate days to weeks, with explicit deliberation structures (Use a weighted decision matrix when options exceed 3 and criteria exceed 4 — working memory cannot hold all dimensions at once, Every decision framework needs five explicit components: criteria, sequence, time budget, kill conditions, and decision rights).

When This Fires

• Before beginning deliberation on any decision — this is the mandatory first step
• When you notice yourself spending hours on a decision that feels like it "shouldn't take this long" — it's probably a two-way door
• When someone asks for a decision and you feel paralyzed — classify first, then deliberate proportionally
• During time audits when you discover excessive time spent on low-stakes choices

Common Failure Mode

Treating all decisions as one-way doors: analyzing every option exhaustively regardless of reversibility. This produces decision paralysis on trivial choices and decision fatigue that depletes resources for the genuinely consequential decisions. The person who spent 45 minutes choosing a restaurant has less cognitive energy for the career decision later that day.

The Protocol

(1) When a decision arises, before any analysis, ask: "If I choose wrong, can I reverse this? What would reversal cost?" (2) Two-way door (easily reversible, low reversal cost): decide in minutes to hours. Use quick heuristics, gut check, or a coin flip for truly trivial choices. Speed matters more than optimality. (3) One-way door (irreversible or high reversal cost): allocate proportional time. Use structured frameworks (Use a weighted decision matrix when options exceed 3 and criteria exceed 4 — working memory cannot hold all dimensions at once, Every decision framework needs five explicit components: criteria, sequence, time budget, kill conditions, and decision rights), seek diverse input, and explicitly consider second-order consequences. (4) Set a hard deadline even for one-way doors — open-ended deliberation doesn't improve decision quality past a point; it just delays action. (5) When uncertain about classification, default to two-way door. Most decisions are more reversible than they feel in the moment.