The One-Way Door vs. Two-Way Door Heuristic
In his 1997 and 2015 letters to Amazon shareholders, Jeff Bezos addressed the greatest danger facing growing enterprises: bureaucratic sludge. As organizations scale, they develop an institutional fear of failure. To prevent blunders, management layers erect committees, steering groups, and multi-tier approval processes.
Bezos pointed out that this heavy governance is a catastrophic mistake because it treats all decisions as identical:
'Some decisions are consequential and irreversible or nearly irreversible – one-way doors – and these decisions must be made methodically, carefully, slowly, with great deliberation and consultation. But most decisions aren't like that – they are changeable, reversible – they're two-way doors. If you've made a suboptimal Type 2 decision, you don't have to live with the consequences that long. You can reopen the door and go back through.'
Type 1 vs. Type 2 Classification Matrix
| Dimension | Type 1: One-Way Door | Type 2: Two-Way Door |
|---|---|---|
| Reversibility | Irreversible or prohibitively expensive to unwind | Easily undone within days or weeks with minimal cost |
| Downside Consequence | Existential risk of ruin, solvency threat, brand destruction | Minor operational friction, temporary bug, small budget variance |
| Approval Authority | Board of Directors, CEO, Executive Committee | Frontline engineer, product manager, individual contributor |
| Velocity | Slow, deliberate, exhaustive data gathering | Rapid, time-boxed, experimental execution |
| Examples | Selling the company, major M&A, massive bond issuance | A/B testing a landing page, experimenting with API pricing tier |