Original computational notebook (.nb = a Wolfram expression); confirms
UC-84 notebook page shape is a genus. Refinements: nestable cell groups
(outline tree), structured re-evaluable outputs (new opacity point).
Manipulate/Dynamic = snapshot-only. Enrichment-only (UC-84/54/55).
Marks T2 done.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
