Hats, Haircuts, and Tattoos
Match decision speed to how easily the choice can be reversed.
- Difficulty
- Easy
- Time to result
- ~days to results
- Steps
- 4
- Confidence
- 99%
Classify a decision by reversibility. A hat can be tried and removed immediately, so speed and learning matter most. A haircut has a consequence that lingers for a limited period, but the effect eventually grows out; it deserves some care without paralysis. A tattoo is difficult or impossible to reverse and warrants substantial deliberation. The model counters the tendency to treat every choice as permanent. Most everyday decisions are hats or haircuts, so moving quickly creates feedback and usually carries a manageable cost if the choice is wrong.
Origin
James Clear described Hats, Haircuts, and Tattoos as his own decision framework in this episode.
Core principles
- 01Reversibility determines how much deliberation a choice deserves.
- 02Fast reversible choices produce information.
- 03Temporary consequences are often exaggerated.
- 04Irreversible choices warrant careful thought.
How to run it
- 1
Test reversibility
Ask how quickly and completely the choice could be undone.
Pro tip Include the time and cost of recovery, not just technical reversibility.
- 2
Classify the choice
Call it a hat if easily reversible, a haircut if temporarily costly, or a tattoo if effectively permanent.
Watch out Do not classify a choice by anxiety alone.
- 3
Match the pace
Act quickly on hats, use proportionate care on haircuts, and think carefully about tattoos.
Pro tip Use hat decisions to gather real information.
- 4
Review the result
Use what happened to keep, adjust, or reverse the decision where possible.
In the wild
A team is considering a small workflow experiment that can be stopped immediately. They classify it as a hat, launch it quickly, and use the result rather than extended debate to decide what to do next.
→ The team gains information with limited downside.
Common mistakes
Treating every choice as permanent
This slows learning on decisions that could be reversed cheaply.
Ignoring recovery cost
A technically reversible decision may still behave like a haircut if the consequences linger.
Is it for you?
Best for
It is best for prioritizing attention across a mixed set of personal or business decisions.
Not ideal for
It is not ideal when reversibility or consequences are genuinely unknown and require investigation first.
From the transcript
“If the choice is easy to reverse, speed is most important.”
“Most decisions in life are hats and haircuts.”
From the episode
Discipline Expert: The Habit That Will Make Or Break Your Entire 2026! James Clear