Methodology

April 2026

• Apr 28, 2026ConceptsUnderstanding Measurement Bias: How It Skews ResultsMore data cannot fix a biased sample. The Literary Digest mailed 10 million questionnaires, drew its list from car registrations, phone directories and subscribers, and predicted Landon at 57 percent while Roosevelt took 61. Gallup got it right with about 50,000 using quota sampling. Wald saw the same structure in bomber damage: the undamaged areas on returning planes were where hits proved fatal.34 MIN5.0k

February 2026

• Feb 26, 2026ConceptsWhat Does "Framework" Actually Mean?A framework is a flexible scaffold that orients attention and organizes information without dictating the answer, which separates it from a model that explains, a method that prescribes steps, and a theory tested for truth rather than usefulness. The article sorts frameworks into conceptual, analytical, decision and process types, lists five design pitfalls, and names the anti-patterns: framework worship, theater and rigidity.15 MIN46.8k
• Feb 17, 2026ConceptsProblem-Solving Frameworks Used by ExpertsEight frameworks with the problem type each one fits, plus where each breaks: 5 Whys, Ishikawa fishbone, MECE, issue trees, hypothesis-driven investigation, first principles, pre-mortem and 80/20. The research behind the structure-first habit is De Groot's 1965 chess study, which found grandmasters searched fewer moves than weaker players, not more. Their edge was scoping to a few promising candidates and going deep on those.16 MIN67.5k

October 2025

• Oct 10, 2025Work SkillsAgile vs Waterfall ExplainedWinston Royce's 1970 paper is routinely credited with inventing waterfall, but he described the sequential model and then called it risky and an invitation to failure, because each phase had to finish before anyone discovered the requirements were wrong. That frames the real question: when stable requirements and high change costs favor phase gates, when uncertainty favors short iterations, and which hybrids hold up in practice.16 MIN48.5k

June 2025

• Jun 5, 2025ExplainersUsing Systems Thinking in Real-World ApplicationsHau Lee documented the case in 1997, tracing the amplification to ordering policies and delays rather than any external shock, which is exactly what Forrester's Beer Game had produced in classrooms four decades earlier. Information sharing and revised ordering cut costs across consumer goods. This page covers reinforcing and balancing loops, stocks and flows, the system archetypes, and Meadows's hierarchy of leverage points from parameters up to paradigms.48 MIN34.0k