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Bent Flyvbjerg

3 books

business

What they argue

Bent Flyvbjerg is a thinker who explores the systemic failures of large-scale projects and the social construction of human reasoning. He works at the intersection of project management, behavioral economics, and the sociology of rationality to understand why complex human endeavors often fail and how power shapes our concepts of logic.

  1. The Iron Law of Megaprojects

    This is the systemic regularity where 9 out of 10 megaprojects suffer from significant cost overruns and delays. It suggests that these failures are not isolated accidents but a predictable pattern in large-scale endeavors.

    From How Big Things Get Done (book)

    • A related idea Tim Harford — The Original Sin of MegaprojectsA major logistical failure occurs when the construction phase of a large-scale project begins before the goals and technical details are fully finalized. To avoid…Cautionary Tales of the Sydney Opera House

  2. Optimism Bias

    This is the innate human tendency to underestimate costs and timelines while overestimating benefits, even when aware of past failures. It occurs because the people planning projects are often incentivized to underestimate costs to ensure project approval.

    From Megaprojects and Risk (book)

    • A related idea Martin E.P. Seligman — Explanatory StyleOptimism is a cognitive style rather than a feeling, defined by the internal narrative we use to explain why things happen. By identifying and restructuring this style,…Learned Optimism

  3. Reference Class Forecasting (RCF)

    To combat optimism bias, planners should stop asking what a specific project will cost and instead look at what the last 10 similar projects cost. This involves identifying a reference class of similar projects to provide a more realistic basis for forecasting.

    From Megaprojects and Risk (book)

  4. The Social Construction of Rationality

    Rationality is not a universal constant or a mirror of reality, but a set of shared rules and norms shaped by history and culture. It is a social practice used to establish authority, manufacture consent, and organize human activity.

    From Rationality and power (book)

    • A related idea Abhijit V. Banerjee — The Limits of RationalityHumans do not have the cognitive bandwidth to calculate every possible outcome and instead rely on 'rules of thumb' and heuristics. Because of this, assuming people are…Good Economics for Hard Times

  5. Strategic Lies

    These are the distortions that cloud human judgment during the planning and approval phases of large-scale projects. To build significant things, one must strip away these lies and replace them with a rigorous, reference-based forecasting system.

    From How Big Things Get Done (book)

    • A related idea Sam Harris — The Architecture of DeceptionLying is a sophisticated cognitive achievement because humans have the capacity for 'Theory of Mind'—the ability to model what another person is thinking, feeling, and…Lying

  6. The Rationality Audit

    This is a tool used to deconstruct decisions by identifying the 'given' premises presented as facts. It helps uncover the underlying power dynamics hidden behind a 'rational' business case.

    From Rationality and power (book)

    • A related idea Steven D. Levitt — The Incentive AuditThis is a framework used to diagnose why a behavior is happening in any system or to understand why a person, company, or government is acting in an 'irrational' way.…Think Like a Freak
    • A related idea Patrick Collison — The Malleability AuditThis framework is used to evaluate software by checking if application logic is hidden behind a UI that prevents small tweaks. It encourages users to check for…Questions

Every idea names the summary it came from. Written by a local model from this mind’s own work, never from memory.

Books 3

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