The Need for More Multidisciplinary Skills from Professionals: Educational Implications
Charlie Munger argues that professionals must develop multidisciplinary skills to overcome cognitive biases like 'man-with-a-hammer' tendency and incentive-caused bias, and that elite education should adopt a rigorous, fluency-based model inspired by pilot training to cultivate broad-scale worldly wisdom.
THE IDEA
Background
In a speech to a Harvard Law School Class of 1948 reunion, Munger asks how professional education could build broader, usable knowledge. He poses five questions:
- Do broadscale professionals need more multidisciplinary skill?
- Was our education sufficiently multidisciplinary?
- What is the essential nature of best-form multidisciplinary education in elite soft science?
- How far has elite academia progressed toward attainable best-form multidisciplinarity?
- What educational practices would make progress faster?
Key Concepts
Munger identifies two subconscious mental tendencies that cause poor professional cognition:
- Incentive-caused bias: A natural drift toward what is good for the professional rather than the client.
- Man-with-a-hammer tendency: The proverb “To a man with only a hammer, every problem tends to look pretty much like a nail.” The cure is to carry multiple tools from diverse disciplines.
He criticizes Bernard Shaw’s view that professions are merely conspiracies, emphasizing that subconscious biases are more dangerous. He also references Alfred North Whitehead’s “fatal unconnectedness of academic disciplines.”
Pilot Training Model
Munger proposes a model for elite education based on six features he draws from pilot training:
- Wide formal education covering everything useful for piloting.
- All knowledge raised to practice-based fluency, even for handling multiple hazards simultaneously.
- Thinking both forward and in reverse (inversion).
- Training time allocated to minimize later malfunctions.
- Mandatory checklist routines.
- Knowledge maintenance through regular simulator use to prevent skill atrophy.
This model, applied to broadscale problem solving, requires “multidisciplinary coverage of immense amplitude, with all needed skills raised to an ever-maintained practice-based fluency.”
Fundamental Organizing Ethos of Hard Science
Munger advocates imitating the ethos of hard science (math, physics, chemistry, engineering):
- Rank and use disciplines in order of fundamentalness.
- Master and routinely use the essential parts of all four foundational disciplines.
- No cross-disciplinary absorption without attribution; prefer the most fundamental explanation.
- Generate new principles through hypothesis testing, but never contradict established principles without proof.
He cites Feynman’s demonstration of how cold affected an O-ring’s resilience during the Challenger investigation as an example of applying basic physical reasoning.
Applications in Soft Science
Munger praises “take what you wish” practices that have improved fields like law (Roger Fisher’s negotiation) and economics (tragedy of the commons, behavioral economics). But he warns against importing ideologies or fads (e.g., Freudianism in literature, hard-form efficient-market theory in finance).
His recommendations include:
- Mandatory courses in psychology and accounting (even in law school).
- Problem-solving practice that crosses disciplines, like the shoe factory test described below.
- Use of business periodicals as “aircraft simulators” for lifelong learning.
- Avoiding ideologically extreme professors and students.
Personal Example
Munger describes his own “accidental educational experiment”: despite never taking formal courses in chemistry, economics, psychology, or business, he assimilated the hard science ethos and applied it to softer fields, gaining advantages in investing and decision-making.
He concludes that changing institutional incentives can overcome the inertia of unidisciplinary education, quoting Samuel Johnson: “Truth is hard to assimilate in any mind when opposed by interest.”
When to use it
A lawyer handling a complex business litigation uses principles from game theory, psychology, and accounting to anticipate opponent moves and negotiate settlements.
An educator designing a curriculum for future leaders mandates courses in psychology, accounting, and systems thinking, requiring students to solve interdisciplinary problems (e.g., a policy simulation).
A policymaker designing environmental regulation combines an account of ecological effects with analysis of shared-resource incentives, costs, and how affected groups may respond.
An executive uses a decision-making checklist that includes psychological biases, numerical fluency, and inversion thinking to avoid common errors in strategic planning.
FROM THEORY TO EVERYDAY LIFE
In practice
Shoe Factory Test
A Harvard Business School professor gave a test about two unworldly old ladies inheriting a New England shoe factory. The winning student answered that the old ladies should sell the factory to a competitor, using agency cost and marginal utility concepts from undergraduate psychology and economics, rather than relying on recent business school teachings.
Challenger Disaster
During the Challenger investigation, Feynman demonstrated the effect of cold on an O-ring’s resilience. Munger uses the example to argue for applying basic physical knowledge to a practical problem, rather than treating it as the complete investigation of the disaster.
Roger Fisher’s Negotiation
Munger cites Roger Fisher’s cross-disciplinary approach to negotiation and the success of Getting to YES, giving a historical sales figure of over 3 million copies. The example illustrates borrowing useful ideas across professional boundaries.
A MOMENT TO REFLECT
Put it to work.
In your own profession, what cognitive biases (like man-with-a-hammer) limit your thinking, and how can you integrate tools from other disciplines to counteract them?
How could you redesign your learning or decision-making process to emulate pilot training: building fluency, using checklists, and maintaining skills through regular practice?
Identify a recent complex problem you faced. What multidisciplinary concepts (from economics, psychology, biology, etc.) could have improved your analysis?
References
- A Philosophical Essay on Probabilities — Pierre-Simon Laplace (1814)
- Getting to YES — Roger Fisher and Bill Ury (1981)
- Collapse — Jared Diamond (2005)
- Guns, Germs, and Steel — Jared Diamond (1997)
- Surely You're Joking, Mr. Feynman! — Richard Feynman (1985)
- The Tragedy of the Commons — Garrett Hardin (1968)
CONTINUE THE CONVERSATION
Source texts
- Poor Charlie's Almanack