Library / Explanation Design Principles Framework
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EXD.1:3 - Forces

ForcePractical tension
A quick answer and a consequential ambiguityA short request may already be clear; a small clarification can also prevent a long explanation of the wrong question.
The subject and the recipient’s purposeThe subject constrains which answers are warranted. The recipient’s purpose selects which of those answers is useful.
Available knowledge and added burdenAn initial attempt can reveal the missing relation, but requiring a demonstration adds work and can distract from a simple request.
Continuity and revisionEarlier explanation can remain correct while a changed purpose makes another question current.