Principles

Mental Models Statistics Logic Critical Thinking “Two things moving together does not mean one is causing the other.” Classical logic…

Mental Models Productivity Management “Work expands so as to fill the time available for its completion.” Published by C. Northcote…

Mental Models Management Organizations “In a hierarchy, every employee tends to rise to their level of incompetence.” Published by Dr….

Mental Models Systems Thinking Engineering “A complex system that works is invariably found to have evolved from a simple system…

Mental Models Economics Optimization “Beyond a certain point, each additional unit of input yields less and less output.” First described…

Mental Models Economics Management “When a measure becomes a target, it ceases to be a good measure.” Formulated by Charles…

Mental Models Productivity Economics “80% of consequences come from 20% of causes.” Observed by Vilfredo Pareto, 1896 · Formalized for…

Mental Models Psychology Self-Awareness Cognitive Bias “People with limited knowledge in a domain overestimate their own competence — because the…

Mental Models Linguistics Behavior “People will choose the path of least resistance in any system.” Formalized by George Kingsley Zipf,…