What Mental Models Are Not: A Constant
Mental models are dynamic representations that change with new information. They are used for decision-making but have limitations based on available information and individual perception.
THE IDEA
What Mental Models Are Not: A Constant
A mental model represents some part of a situation so you can reason about it. New information can change the model, the results it suggests, or your confidence in it. A useful model remains open to revision.
Every model has limits. It leaves things out, depends on the information available, and reflects choices about what matters. Ask whether it fits the problem and whether another model reveals something it misses.
Conditions such as if, and, and or can make assumptions explicit. You can then examine how a conclusion changes when a condition changes. This helps expose gaps; it does not make the model complete or guarantee a firm conclusion.
When to use it
Strategic planning in business: Updating mental models based on market feedback.
Personal growth: Recognizing when your mental model of a relationship is outdated.
Scientific research: Refining hypotheses as new data emerges.
Everyday problem-solving: Adjusting your understanding of a complex task as you learn more.
FROM THEORY TO EVERYDAY LIFE
In practice
Investment Decision
An investor uses a mental model to simulate potential outcomes. Conditions like 'if market grows OR if interest rates drop' are considered. As new economic data is released, the model is updated, changing the decision.
Medical Diagnosis
A doctor's mental model of a patient's illness uses conditions: 'if fever AND cough, then suspect flu.' As lab results come in, the model is adjusted, possibly ruling out flu and considering other diagnoses.
A MOMENT TO REFLECT
Put it to work.
Can you think of a time when your mental model of a situation changed after receiving new information?
What are the limitations of your current mental model of a project or decision you are facing?
How do you incorporate conditions (if/and/or) into your mental models to account for uncertainty?
CONTINUE THE CONVERSATION
Source texts
- Thinking in Systems and Mental Models Think Like a Super Thinker (Dawson, Marcus P)