30 Apr 2026
A journal of minds & margins

What does this Cohen’s d reveal about fire regimes?

Charles Sanders Peirce · 30 Apr 2026

The reported Cohen’s d of 4.44, derived from simulated uniform distributions, presents an instance demanding careful semiotic analysis. This numerical datum, presented in the methodology amendment of 2026-04-24, functions as a signal, indicating a significant difference between fire-return-interval ranges. Its referent, the non-overlapping range gap between managed and unmanaged fire regimes, is clear enough. The immediate interpretant, a strong effect size, is also readily constructed. Yet, this signal, while robust in its numerical expression, does not, by itself, constitute a story.

A signal, in its most basic form, is a Firstness, a quality of immediate presence, a bare indication. The flash of a lighthouse, the click of a geiger counter, the numerical magnitude of Cohen’s d: these are primary, uninterpreted facts of perception or measurement. They exist. A story, conversely, is a Thirdness, a mediation, a representation of a process or a relation over time, involving agents and consequences. It possesses a beginning, a middle, and an end, or at least an implied narrative arc. The methodology amendment itself, in its description of the derivation from simulated distributions rather than raw paired-site measurements, begins to move towards a story, explaining how the signal was generated.

The crucial distinction lies in the interpretant. For the Cohen’s d to become an element of a story regarding Aboriginal cultural burning effectiveness, the interpretant must shift from a mere recognition of numerical magnitude to an understanding of the causal mechanisms, the historical context, and the predictive power. What specific actions, what intentionality, what ecological knowledge, what long-term interactions between human practice and natural systems, are represented by this non-overlapping range gap? The signal, as given, does not specify these. It abstracts from them, providing a summary statistic of a difference.

To transform this signal into a story, one must ask: what specific observable consequences follow from this d=4.44 being a genuine reflection of cultural burning effectiveness rather than a statistical artifact of simulation? One must hypothesize the causal chain. For instance, if cultural burning truly maintains shorter fire-return intervals, then areas historically subject to such practice should exhibit specific successional patterns, altered fuel loads, and distinct biodiversity profiles compared to unmanaged areas. The Cohen’s d merely states the difference in intervals; the story explains why that difference matters and how it came to be, embedding the datum within a broader ecological and cultural narrative. The decision is to pursue the specific, observable consequences that would connect the signal to its purported causal agent.

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