Gaslighting

One-Line Definition

By persistently denying others’ feelings and judgments, causing them to doubt their own cognitive abilities.

Core Concept

Gaslighting is a form of psychological manipulation: the perpetrator denies facts, distorts information, and questions the victim’s judgment, causing the victim to gradually lose confidence in their own perception.

What It Solves

When information is incomplete, there are many options, or risks are unclear, it helps you shift your judgment from intuition back to structured analysis.

More specifically, Gaslighting is useful for answering questions like: How can I better understand the current situation? How can I make more reasonable judgments and actions?

When to Use

• When the problem becomes complex and intuitive judgment isn’t reliable enough.
• When the team disagrees on the next move and needs a shared analysis framework.
• When you need to translate abstract judgments into concrete actions, checklists, or experiments.
• When the effectiveness of your current methods drops and you need to re-examine the underlying logic.

When NOT to Use

• When the problem is simple, and direct action matters more than analysis.
• When basic facts are missing, and you’re just cycling through concepts in the air.
• When the model is used only to prove an existing conclusion, not to help correct judgments.

Summary

The key to recognizing Gaslighting is to trust your own feelings and memories and to keep your capacity for independent judgment.