Africa's two clocks run on two skins

Status: Anticipated · untested

Status is derived only from the shepherd-authored triage/prediction data above -- community submissions and claims are a separate overlay and can never change it (see the participation panel below).

This is a proposed connection between two domains, generated by a language model. It is not an article and not evidence: it sits below the evidence/publication boundary. A quantitative prediction and a named kill-dataset are attached (when registered) so the claim stays falsifiable rather than merely evocative.

Claim (verbatim)

The surviving record seems to say Ethiopia wrote early and the Sahel wrote late: Ethiopian parchment books survive from the first millennium, Sahel books barely from before 1600. This conjecture claims much of that famous asymmetry is a substrate artifact: parchment in highland conditions outlasts paper in Sahelian conditions by roughly an order of magnitude in half-life, so EQUAL medieval production in the two corridors would still yield the observed skew in surviving objects. Differential real loss (type-1), applied to two different materials, has been misread as differential history, and the apparent 700-year Ethiopian head start in surviving books compresses sharply once the substrate correction is applied. If it holds, comparative dating of African literatures from surviving-object curves is invalid without an explicit substrate term — and that term becomes estimable from the two corpora's own dated-object distributions.

Prediction clause (verbatim)

Primary clause: attrition curves fitted to dated physical objects — parchment codices in Beta maṣāḥǝft versus paper codices in vHMML's Sahel holdings — yield half-lives differing by a factor of 5 or more; secondary clause: wherever both substrates occur within one corpus, substrate rather than region predicts the object-age distribution. Killed if the two fitted half-lives fall within a factor of 2 of each other, leaving the survival asymmetry to be explained by production history after all.

Kill-dataset (verbatim)

vHMML African holdings compared with Beta maṣāḥǝft (dated-object distributions by substrate).

Nobody has run this test. The kill-data is named above. If you can run it — or you know the paper that already settles it — claim the kill or submit the prior. Kills and priors are credited here, by name, as they come in.

In the atlas

This conjecture is bridged, as an L1 lead, onto these Inferpedia subject pages.

Provenance

Run: Fresh agent generation · model: claude-fable-5

Generated blind by a fresh claude-fable-5 instance in a single Write with no reads, web access, database queries, or other tool calls.

Novelty / leakage triage

anticipated in the literature — this exact test has never been run

The components exist qualitatively: parchment's climate response is studied, and paper's short life in Sahelian conditions (termites, humidity, recopying) is the standard explanation for the late physical record there, while Ethiopian parchment survives from the first millennium. An explicit cross-corpus substrate half-life estimation deflating the Ethiopia-Sahel comparison was not located.

Predictions

No prediction registered yet.

Weigh in

No community feedback yet.

Add your take

Posted immediately (spam is removed). Community feedback is never an adjudicated verdict and never changes this conjecture's triage label or status above.