Occam's Razor

When diagnosing problems, start with the simplest explanation before inventing complex theories.

Example

If your code doesn't work, check for typos before assuming a framework bug.

When to use it

This model is most useful when you're stuck. If your current approach isn't working, Occam's Razor often reveals the hidden constraint.

• Over-applying: Not every problem benefits from this model. Match the tool to the situation.
• Under-applying: People learn the model but don't practice it. Application takes repetition.
• Misunderstanding the principle: Surface-level understanding leads to poor execution. Study the examples.
• Ignoring context: The same model works differently in different domains. Adapt accordingly.

1. Identify a current decision you're facing. Write down the assumptions you're making. Challenge each one.
2. Look at a past failure. Apply Occam's Razor retroactively: would it have changed the outcome?
3. Teach the model to someone else. If you can't explain it simply, you don't understand it well enough.
4. Set a reminder to apply this model once per week for the next month. Track the results.

The best thinkers have internalized multiple mental models and apply them fluidly based on context.