Jumping to Conclusions
The tendency of System 1 to quickly form judgments based on limited information, which is efficient in familiar or low-stakes situations but risky and error-prone when the context is unfamiliar, stakes are high, or time is short.
THE IDEA
SPEAKING OF NORMS AND CAUSES
“When the second applicant also turned out to be an old friend of mine, I wasn’t quite as surprised. Very little repetition is needed for a new experience to feel normal!”
“When we survey the reaction to these products, let’s make sure we don’t focus exclusively on the average. We should consider the entire range of normal reactions.”
“She can’t accept that she was just unlucky; she needs a causal story. She will end up thinking that someone intentionally sabotaged her work.”
7
A MACHINE FOR JUMPING TO CONCLUSIONS
The great comedian Danny Kaye had a line that has stayed with me since my adolescence. Speaking of a woman he dislikes, he says, “Her favorite position is beside herself, and her favorite sport is jumping to conclusions.” The line came up, I remember, in the initial conversation with Amos Tversky about the rationality of statistical intuitions, and now I believe it offers an apt description of how System 1 functions. Jumping to conclusions is efficient if the conclusions are likely to be correct and the costs of an occasional mistake acceptable, and if the jump saves much time and effort. Jumping to conclusions is risky when the situation is unfamiliar, the stakes are high, and there is no time to collect more information. These are the circumstances in which intuitive errors are probable, which may be prevented by a deliberate intervention of System 2.
When to use it
When evaluating job candidates, avoid making snap judgments based on a single impressive or off-putting trait; instead, collect and systematically review all evidence.
In financial decisions, resist the urge to act on a hot tip or a sharp market move without analyzing underlying data and risk.
When diagnosing a problem at work, list multiple possible causes before settling on one, to prevent premature conclusions.
During negotiations, consciously question initial impressions of the other party’s intentions and check for alternative explanations.
FROM THEORY TO EVERYDAY LIFE
In practice
Normalizing Repetition
When a second applicant turns out to be an old friend, the surprise diminishes quickly because repetition makes the event feel normal. System 1 jumps to the conclusion that the pattern is common.
Focusing Only on the Average
When surveying reactions to products, focusing exclusively on the average ignores the full range of normal reactions. This depicts jumping to a summary conclusion without considering variation.
Needing a Causal Story
A person who cannot accept bad luck invents a causal story, concluding that someone intentionally sabotaged their work. The person jumps to a causal explanation rather than accepting randomness.
A MOMENT TO REFLECT
Put it to work.
Recall a recent situation where you made a quick judgment that turned out to be wrong. What factors (familiarity, stakes, time pressure) contributed to that error?
How can you deliberately slow down your thinking to avoid jumping to conclusions when the stakes are high?
Think of a time when a quick conclusion was correct and efficient. What made that situation safe for System 1 to take the lead?
Often confused with
References
- Thinking, Fast and Slow — Daniel Kahneman (2011)
CONTINUE THE CONVERSATION
Source texts
- Thinking, Fast and Slow (Daniel Kahneman)