Hitting the Target: Accuracy vs. Precision
Why they're not the same and why it matters.
Using Jono’s sketch of four archery targets, we discuss why and how accuracy and precision differ.
Using many different examples, we frame the distinction as “accuracy being true to intention and precision being true to itself,” also phrased as doing the right thing versus doing it right.
The sketch is inspired by Simon Winchester's book, Exactly, where precision and accuracy are connected to the industrial revolution via Henry Maudsley’s innovative screw-cutting lathe, micrometer, and the concept of interchangeable parts. The conversation broadens to explore examples in food (McDonald’s vs artisan meals), recipes, recruiting, IQ tests (validity vs reliability), indoctrinated beliefs, gut feelings, culture’s return to individual craftsmanship, AI’s variable answers, LED mask wavelength tolerances, and targeting weapons.
External links
Also referenced in this episode:
- Jono's sketch that describes the difference between Reliability and Validity.
- Jono's sketch inspired by Roger Martin's Knowledge Funnel.
- Jono's sketch outlining The Beard Cycle.
Episode Outline
00:00 Accuracy vs Precision: the Four Target Sketch
03:23 True to Intention
04:11 Ball Through Window
05:44 Precision Built World
09:45 Food and Recipes
13:27 Calibration and Scales
14:47 Manufacturing Tolerances
16:51 Hiring and Testing
19:16 Beliefs and Education
23:01 Culture and Craft
26:09 Doctors Robots and AI
29:03 Wrap Up and Credits
All music on this podcast series is provided by the very talented Franc Cinelli and you can find more tracks at franccinelli.com
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