C.2.8:4.7 - Articulation, effort and useful change

C.2.4 U.ArticulationExplicitness orders progression from a cue to explicit branch-appropriate meaning and stable receiving use. ESI compares the selected structure extractable by an observer under a budget. Two complete descriptions at the same AE level can have different ESI; a reader’s difficulty alone does not establish that the semantic branch was left unarticulated.

Measure or compare extraction effort separately. Two expressions may expose the same structure at different cost. Additional selected structure may also be irrelevant to the next task or displace more valuable work. C.11.CRC/C.11 make the marginal choice using the structural result, cost, protected results and receiving value. The chosen result may be the current sufficient explanation.

Use the method appropriate to the proposed change: C.37 for selecting representations, A.6.3.NAR for narrative ordering and source carry-through, or the applicable domain description or instructional method. ESI states the aspect being compared; it does not prescribe adding a diagram, example or lesson.