Understanding the Circle of Competence

Introduction

The concept of a “circle of competence” was popularised by investors and it refers to the areas where an individual has deep understanding, experience, and the ability to make sound decisions. The goal is not to know everything but to clearly understand what you know and what you do not.

A narrow circle of competence can limit opportunities, while a constantly expanding circle helps individuals adapt, innovate, and make better decisions. The key is not random learning but deliberate expansion.

Start With Deep Learning Within Your Existing Strengths

The first step to expanding your competence is strengthening what you already understand. Expertise is built through repeated exposure, practice, and reflection.

For example, a software engineer can deepen their knowledge of coding fundamentals, system design, and emerging technologies before moving into areas like product management or entrepreneurship. Building depth creates a strong foundation for exploring new fields.

As explains, small improvements repeated consistently create remarkable results over time. Learning one concept every day, reading regularly, or practising a skill for a few minutes daily compounds into significant expertise.

Develop Curiosity Across Different Domains

Many breakthroughs happen when ideas from different fields connect. Expanding your circle of competence requires curiosity beyond your immediate profession.

A scientist learning about business, a designer understanding psychology, or an entrepreneur studying technology can create unique perspectives. Cross-disciplinary knowledge helps people identify patterns and solve complex problems.

Reading widely, following experts from different fields, and engaging with diverse communities can gradually increase your understanding of the world.

Learn Through Projects and Real Experiences

Knowledge becomes competence only when applied. Reading about leadership, investing, technology, or communication provides information, but real projects create understanding.

Taking on challenging assignments, experimenting with new skills, and learning from failures accelerate growth. Practical experience helps convert theoretical knowledge into decision-making ability.

The concept of “learning by doing” is central to building expertise because mistakes provide valuable feedback that books alone cannot offer.

Find Mentors and Learn From Experts

One of the fastest ways to expand competence is by learning from people who have already developed expertise.

Mentors can provide insights, frameworks, and lessons from their experiences. Studying biographies, interviews, and writings of successful individuals also allows us to borrow mental models developed over decades.

As Munger highlighted, building a “latticework of mental models” from different disciplines improves thinking and decision-making.

Maintain a Growth Mindset

Expanding your circle of competence requires accepting that mastery takes time. It is easy to feel overwhelmed when entering unfamiliar areas, but consistent effort gradually reduces uncertainty.

The objective is not to become an expert in everything but to continuously expand the boundaries of what you understand. A growing circle of competence creates confidence, adaptability, and better judgement in an increasingly complex world.

References

Atomic Habits – James Clear (2018)
Poor Charlie’s Almanack – Charles T. Munger
Warren Buffett’s shareholder letters – Berkshire Hathaway
Range: Why Generalists Triumph in a Specialized World – David Epstein (2019)