FIRE Intuition Framework
Trust intuition for fast, irrelevant, repetitious, or evolutionary choices
- Difficulty
- Moderate
- Time to result
- ~days to results
- Steps
- 5
- Confidence
- 99%
FIRE is Greenberg's decision rule for when to trust intuition. F stands for fast decisions where analysis would be too slow. I stands for irrelevant decisions whose low stakes do not justify prolonged thought. R stands for repetitious decisions made many times with feedback, allowing the mind to learn patterns. E stands for evolutionary decisions where inherited reactions, such as avoiding rotten food or sudden danger, are often useful. If a choice does not fit one of these conditions, deliberate analysis tends to produce better outcomes. The framework reconciles pro-intuition and pro-analysis camps by treating each as a tool with a domain of competence rather than declaring either universally superior.
Origin
Greenberg created FIRE after observing that advocates of intuition and rational analysis both had valid points but rarely resolved their disagreement.
Core principles
- 01Intuition is faster than conscious analysis
- 02Feedback trains intuition through repetition
- 03Evolution supplies useful reactions in recurrent ancestral situations
- 04Analytical effort should be reserved for choices outside the FIRE conditions
How to run it
- 1
Test for speed
Ask whether delay for analysis would make the decision useless or dangerous.
Pro tip Think of emergency driving, sports, or martial arts.
Watch out Do not use urgency as an excuse when time is actually available.
- 2
Test for irrelevance
Ask whether the stakes are too small to justify the time analysis would consume.
Pro tip Use a quick preference or coin flip for trivial choices.
- 3
Test for repetition
Check whether you have performed this exact class of task many times and received clear feedback.
Pro tip Weight feedback quality as well as repetition count.
Watch out Experience without outcome feedback may not train accurate intuition.
- 4
Test for evolution
Check whether the reaction addresses a recurrent physical condition humans evolved to handle.
Watch out Evolutionary intuitions are useful, not infallible.
- 5
Switch to analysis
If no FIRE condition applies, slow down and use reflective rational analysis.
Pro tip Still treat intuition as information rather than suppressing it.
Watch out Analysis should not erase a signal merely because you cannot immediately explain it.
In the wild
Magnus Carlsen can recognize strong chess moves almost immediately because he has played an enormous number of games with feedback. Put him into an unfamiliar game with different rules, however, and chess intuitions could pattern-match incorrectly. FIRE classifies the first as repetitious and the second as a case for analysis.
→ Intuition is trusted only inside the domain that trained it.
Common mistakes
Confusing familiarity with trained repetition
A familiar-looking problem may use different rules, causing incorrect pattern matching.
Practising without feedback
Repetition cannot efficiently train intuition when the person cannot tell whether the outcome was right.
Using analysis for trivial choices
Spending an hour choosing entertainment wastes effort on an irrelevant decision.
Is it for you?
Best for
It is best for choosing the mode of thought before acting under uncertainty.
Not ideal for
It is not ideal as a guarantee that any particular intuition is correct.
From the transcript
“it's the acronym F I R E, FIRE. And it's about when should you trust your gut?”
“these four situations, fast decisions, relevant decisions, repetition decisions, and evolutionary decisions when you can trust your gut.”
From the episode
The 5 Most Effective Techniques To Hack Your Habits - Spencer Greenberg - #705
Spencer Greenberg