Management & Thinking
ProOne-way Door vs. Two-way Door
單向門 vs. 雙向門 · Source: Jeff Bezos
Calibrating how much care a decision deserves — avoiding over-deliberation on reversible choices and under-deliberation on irreversible ones
Core Concept
Bezos categorizes decisions as two-way doors (reversible — you can walk back through if you don't like what you see) or one-way doors (irreversible — once you pass through, you can't return). Most decisions are two-way doors, but people treat them like one-way doors, causing excessive slowness and cost.
✓ When to use this
Classify before deciding: is this a two-way door (reversible) or one-way door (irreversible)? Move fast on reversible ones and learn by doing; slow down on irreversible ones with pre-mortem and margin of safety.
✗ When not to use this
Marking everything one-way breeds over-caution and paralysis — many decisions are more reversible than they feel. Conversely, mislabeling irreversible calls (contracts, public commitments) as two-way is expensive.
Questions you will be asked
Using this framework, you will work through —
- 1.What is this decision?
- 2.If you execute this decision and regret it, can you return to the status quo? At what cost?
- 3.Is this a one-way or two-way door? What's your reasoning?
- …and 3 more
Worked example
Expand to see what a filled-in run looks like
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Worked example
Expand to see what a filled-in run looks like
Situation
在公司全員大會公開宣布「我們明年要轉型成 AI 優先公司」。團隊問我這個會不會講得太早。
1. What is this decision?
是否要在全員大會公開宣布這個轉型方向。
2. If you execute this decision and regret it, can you return to the status quo? At what cost?
單向門。一旦對全員、再對外講出去，撤回的代價極高——團隊會覺得「主管都在搖擺」、招募會被影響、客戶會質疑下一步。
3. Is this a one-way or two-way door? What's your reasoning?
雙向門替代：先在主管層做 brown bag 提這個想法，蒐集反對意見；再內部小範圍試水溫；確認方向後才全員講。
4. If it's a two-way door: what are you waiting for? What's making you hesitate?
我之所以想直接全員講，是因為「想感覺已經做出 commitment」——這是情緒驅動，不是策略需要。
5. If it's a one-way door: have you done sufficient analysis? Is there a way to make it two-way?
如果方向真的對，多花一個月做雙向門驗證沒損失；如果方向錯，這一個月就是 saving。
6. What is your decision? Where is the right balance between speed and caution?
改：下週主管層先講；兩週後做一次 pulse survey；確認後再全員大會。把單向門延後 4–6 週。
Use it inside ChatGPT / Claude
Paste the prompt below and the AI will walk you through this framework, one question at a time.
你現在是引導使用者做「雙向門 vs 單向門」分類的教練（Bezos）。 依序問： 1) 你正在考慮的決策是什麼？ 2) 這是雙向門（可低成本撤回）還是單向門（撤回代價極高）？為什麼？ 3) 如果是單向門，有沒有雙向門替代方案？（試點、可逆的小規模版本） 4) 你想「直接做」的真正動機是什麼？是策略需要、還是情緒驅動？ 5) 多花時間做雙向門驗證，最壞情況損失什麼？最好情況收穫什麼？ 6) 你的修正版決策是什麼？是否把單向門先轉成雙向門？ 特別追問：當使用者把所有決策都當單向門時，要他重新評估可逆度——多數決策其實比想像的更容易撤回。 互動規則： 1. 一次只問一題，等使用者回答後再進入下一題。 2. 使用者答完所有題目前，不要做總結或下結論。 3. 若答案太抽象、太籠統，請追問一次具體例子或數字後再繼續。 4. 全部答完後，輸出三段：(a) 摘要使用者的關鍵判斷；(b) 你看到的盲點或張力；(c) 一個具體下一步行動建議。 5. 不要替使用者做決定，只把判斷攤開讓他自己決定。
Related Frameworks
Management & Thinking
Regret Minimization Framework
Major life decisions, career changes, irreversible choices — especially useful when present emotions cloud judgment
Management & Thinking
Pre-mortem
Stress-testing a plan before committing — finding failure paths you haven't seen yet
Investment & Finance
Margin of Safety Thinking
Any decision resting on critical assumptions — investments, ventures, major commitments — ensuring you survive when assumptions prove wrong
FAQ
How is the one-way/two-way door different from asymmetric risk/reward?
The one-way/two-way door is about reversibility — can you walk back if you're wrong; asymmetric risk/reward is about the size and shape of losses vs gains. They're two independent dimensions you can combine: reversible-with-limited-downside decisions should be made fast, while irreversible-with-large-downside ones demand caution. Classify the door first, then weigh the odds.
How do I tell which kind of door a decision is?
Ask: "If this decision is wrong, how long and how costly is it to reverse?" Recoverable in days = two-way door, decide fast and adjust as you go; takes years to undo or is truly irreversible = one-way door, worth caution. Most people's biggest mistake is treating two-way doors as one-way, making decisions too slowly and missing the window.
Does a two-way door mean I can decide carelessly?
Not carelessly — "decide fast and stay willing to revise." The right posture for a two-way door is to act, observe the result, and walk back if unsatisfied. Over-analyzing it wastes its greatest advantage — reversibility: you pay the cost of slowness without buying the certainty that only irreversible decisions need.
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