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Sufficient vs. Necessary Conditions: When “Helpful” Does Not Mean “Guaranteed”
Learn to test claims about success, overtime, and health by separating sufficient conditions, necessary conditions, and combinations of conditions.
5 min read · Updated 2026-09-01
Do Not Let the Means Replace the Goal: A Four-Dimension Check for Important Choices
Separate goals from methods, then examine major work and life decisions through money, relationships, enjoyment, and physical and mental health.
6 min read · Updated 2026-09-01
Correlation Is Not Causation: Find the Cause Worth Acting On
Use a six-step causal check across sales, teamwork, and health examples to avoid spending effort on the wrong variable.
5 min read · Updated 2026-09-01
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