Graham Duncan’s article, “The Playing Field,” explores what separates great investors from everyone else.
He argues that exceptional investors approach their work like a game—and not just any game, but one they deeply understand, shaped around their own temperament and values.
It’s not just about playing well. It’s about knowing what game you’re playing in the first place.
“In life, the challenge is not so much to figure out how best to play the game; the challenge is to figure out what game you’re playing.”
— Kwame Anthony Appiah
This idea struck a chord. Too many people—especially high-achieving professionals—grind their way up a ladder, only to discover it’s leaning against the wrong wall. They optimize like crazy without ever stopping to ask: Is this even the life I want?
Whether you’re an investor, entrepreneur, creative, or someone simply trying to live more deliberately, Duncan’s framework offers valuable insights about growth, mindset, and the pursuit of mastery.
Key Takeaways from “The Playing Field”
The best investors act on the world rather than believe the world is acting on them. They know what’s in their control, and what’s not. It’s a subtle shift that changes everything.
- Locus of Control: Great investors distinguish between factors they can control and those they cannot, framing their role in investing (and life) as active participants rather than passive victims of circumstance.
- The Five Levels of Investing: Duncan outlines a progression that mirrors many paths to mastery.
- Level 1: Apprentice: Learning the basics of investing, often through mentorship. Early career experiences shape perspectives on markets and frameworks for evaluating opportunities.
- Level 2: Expert: Mastering a specific game or investment style. Many plateau here, constrained by fixed identities (e.g., “value investor”) and a focus on peer competition.
- Level 3: Professional: Tailoring strategies to personal strengths and weaknesses. Successful investors consolidate diverse influences and develop unique, adaptable approaches.
- Level 4: Master: Redefining the game with a long-term focus and adaptability. These investors integrate multiple mental models, demonstrate open-mindedness, and prioritize outcomes over correctness of analysis.
- Level 5: Steward: Becoming part of the investment ecosystem, mentoring others, and influencing the broader field.
- Mindset Shifts:
- Embrace luck as a neutral force, focusing on how to play the cards dealt rather than lamenting the hand itself.
- Evolve beyond fixed identities and strategies, continuously expanding and refining approaches to match evolving market dynamics.
- Attributes of Great Investors:
- Open-mindedness with a Point of View: Balancing conviction with receptiveness to new information and alternative perspectives.
- Flexibility: Avoiding rigid definitions of success and benchmarking against others.
- Focus on Outcomes: Prioritizing extracting value from the market rather than proving the correctness of one’s thesis.
Duncan concludes that transcending each level requires qualitative leaps, often influenced by shifts in environment, mentors, or exposure to higher-level thinkers. Great investors not only master their craft but redefine and shape the playing field itself.
That’s the investor’s journey, but what struck me most is how this maps to almost any pursuit of mastery. Here’s how I see these levels and lessons showing up in everyday life.
From Investing to Life: Universal Lessons for Top Performers
Graham Duncan’s article, The Playing Field, offers profound insights into investing, but its lessons go far beyond the financial world. Whether you’re an entrepreneur, athlete, or creative, Duncan’s principles apply to anyone striving for excellence.
Here are some key takeaways and how they translate into being a top performer in any field:
1. Understand Your Unique Playing Field
Duncan argues that investors succeed when they deeply understand the playing field they’re operating on—where the rules, opportunities, and dynamics are constantly shifting.
Application for Top Performers:
No matter your industry or pursuit, develop a deep understanding of the landscape you’re navigating. What are the unwritten rules? Who are the key players? Where are the opportunities others miss?
2. The Inner Game Matters More Than the Outer Game
Duncan emphasizes that success in investing often hinges on self-awareness and emotional regulation, not just technical skills.
Application for Top Performers:
Mastering your craft isn’t enough. To rise above, you need to manage stress, stay resilient in the face of setbacks, and cultivate self-awareness to make better decisions.
3. Play the Long Game
Great investors don’t chase short-term wins—they think in decades. Duncan’s article highlights the value of patience and compounding.
Application for Top Performers:
Focus on sustainable growth and the big picture. Whether it’s building a career, a skill, or a legacy, avoid shortcuts and trust the process.
4. Leverage Other People’s Superpowers
Duncan discusses the power of collaboration—how the best investors build teams with complementary skills and perspectives.
Application for Top Performers:
Know your strengths, but also know when to rely on others. Building a network of talented collaborators can help you achieve more than you ever could alone.
5. Keep Iterating
Greatness isn’t static. The best investors continually refine their process based on feedback and outcomes. They learn from their mistakes and adapt.
Application for Top Performers:
No matter your field, continuous improvement is non-negotiable. Reflect on what works, discard what doesn’t, and embrace lifelong learning.
Duncan’s framework reminded me to pause and take inventory—not just of what I’m doing, but why I’m doing it. What game am I playing? Who defined the rules? Am I moving up the levels, or stuck running someone else’s race?
So here’s your nudge:
Take ten quiet minutes this week. Ask yourself: What game am I actually playing—and is it one worth winning?
The next level doesn’t always require working harder. Sometimes it just takes seeing the game differently.
Leave a Reply