Do all decisions require the same intensity, or only some? In his 2015 Letter to Shareholders, Bezos articulates two types of decisions that seem obvious after reading but require continual reminding.

Type 1 decisions are irreversible—one-way doors that require methodical, careful deliberation.

Type 2 decisions are reversible—two-way doors that can and should be made quickly.

Key excerpt from the letter:

"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."

The insight: match your decision-making process to the decision type, not your organization's default approach.