A team's shared mental model of why a codebase is designed the way it is — how the parts are supposed to work together and why key decisions were made. When this theory evaporates (through turnover, AI-assisted development without comprehension, or poor documentation), even clean code becomes unmaintainable.
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Theory of the System
19th May 2026
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Debrief the week in Quality via a community radio show hosted by Simon Tomes and members of the community
