Type 1 vs Type 2 Decisions: Reversibility as Decision-Making Framework

Definition

A Type 1 decision is consequential and irreversible or nearly irreversible—a one-way door. You must walk through carefully, with great deliberation and consultation, because if you don't like what you see on the other side, you cannot easily get back. Most Type 2 decisions are reversible—two-way doors. If you make a suboptimal choice, you reopen the door and go back through. Type 2 decisions should be made quickly by individuals or small groups; applying Type 1 process to Type 2 decisions creates organizational slowness and loss of invention. A large organization's default trap is using heavyweight Type 1 methodology on most decisions, including many that are reversible.

In the Book

Bezos introduces this framework in 2015: "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 for that long. You can reopen the door and go back through."

The mechanism is explicitly about organizational speed: "As organizations get larger, there seems to be a tendency to use the heavy-weight Type 1 decision-making process on most decisions, including many Type 2 decisions. The end result of this is slowness, unthoughtful risk aversion, failure to experiment sufficiently, and consequently diminished invention."

A concrete example shows the cost: if a team must convince Bezos (the CEO) of a decision before proceeding, the decision cycle slows to whatever his review speed is. But if a team can simply ask "Disagree and commit?" (gaining consent, not consensus), the cycle accelerates dramatically. He illustrates: deciding on an Amazon Studios original he disagreed with, he "wrote back right away with 'I disagree and commit and hope it becomes the most watched thing we've ever made.' Consider how much slower this decision cycle would have been if the team had actually had to convince me rather than simply get my commitment."

Why It Matters

Reversibility is a hidden organizational variable. Most teams cannot tell which decisions are truly irreversible and treat them uniformly, applying expensive deliberation to low-risk choices. This concept lets organizations categorize explicitly and match process speed to actual consequence, enabling rapid experimentation and learning on reversible decisions while protecting careful judgment for decisions that truly cannot be undone. It exportable to any organization: the question is not "is this decision important?" but "can we undo it?" A company that learns to distinguish will move faster and invent more.