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No. 100 · People · Chemistry

Polarity

Once an issue grows two charged ends, everything gets pulled towards one or the other.

In chemistry, polarity is how electrical charge is spread across a molecule, creating positive and negative ends. As a mental model, it describes how issues and groups split into opposing camps, like France during the Dreyfus Affair or Bud Light's customers in 2023.

Use it to anticipate when a decision might divide people. Break workplace debates into smaller questions, seek balanced financial advice, and look for shared values in family disagreements. Not every split is false, so take a stand thoughtfully rather than letting the pull decide.

In the Almanac

“The Dreyfus affair”, 1894–1906 · “Bud Light”, 2023

Both stories in full, three ways to use it and where it misleads.

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Questions

What is Polarity?

In chemistry, polarity is how electrical charge is spread across a molecule, creating positive and negative ends. As a mental model, it describes how issues and groups split into opposing camps, like France during the Dreyfus Affair or Bud Light's customers in 2023.

How do you use Polarity?

Use it to anticipate when a decision might divide people. Break workplace debates into smaller questions, seek balanced financial advice, and look for shared values in family disagreements. Not every split is false, so take a stand thoughtfully rather than letting the pull decide.

When does Polarity matter?

Polarity is one of the 60 mental models for people, the situations where you ask: Why do people act as they do, and how do I work with them? Within that, it belongs to “Negotiating and conflict”, alongside Appeasement, Best Alternative to a Negotiated Agreement and Call Your Bluff.

What is an example of Polarity?

Two stories show it at work: The Dreyfus affair (1894–1906) and Bud Light (2023). Both are told in full in The Mental Models Daily Almanac, which has two stories for each of its 365 models.

Which mental models are related to Polarity?

Echo Chambers, Out-Group Bias and Black and White Fallacy. Polarity itself comes from chemistry.