Principlev1
Match classification granularity to your ability to
Match classification granularity to your ability to discriminate and your need to differentiate — scales finer than you can reliably distinguish add complexity without information.
Why This Is a Principle
Derives from Working Memory Capacity Limit (working memory capacity) and Abstraction Necessarily Discards Information (abstraction discards information). Prescribes calibrating scale resolution to cognitive capacity and practical need. This is design guidance that prevents both over-simplification and false precision.