The five-scribe hypothesis proposed by Davis (2020) has become a foundational premise in recent Voynich Manuscript research, influencing linguistic analysis, topic modeling, and public understanding of the manuscript. This paper subjects the hypothesis to critical examination. Building on the continuous evolution framework established in Timm (2026), which demonstrated that the manuscript's text evolves gradually from one state to another rather than partitioning into discrete systems, this paper shows that: (1) Davis's diagnostic criteria—the glyphs ⟨k⟩ and ⟨n⟩—fail on empirical examination, with both variants appearing on nearly every page of the manuscript; (2) the five scribes reduce to pre-existing categories, with Scribes 1 and 2 replicating the Currier A/B language distinction and Scribe 4 identifying pages with labels rather than running text; (3) the chain of apparent independent confirmation is circular, with each study inheriting assumptions from the previous one; and (4) the handwriting variation is more parsimoniously explained as continuous evolution of a single hand alongside the documented continuous evolution of the vocabulary. The conclusion is that discrete scribe categories, like discrete language categories, are imposed on a continuum.

This paper is a companion to "The Challenge of Analyzing a Dynamic Text: Why the Voynich Manuscript Resists Conventional Interpretation" (Timm, 2026), available on LingBuzz. The supplementary palaeographic dataset is archived on Zenodo (doi: 10.5281/zenodo.18827108).