Author attribution, as a sub-field of stylometry, is well suited to a relatively small set of circumstances: an unsigned letter sent by one of a handful of correspondents, an act of a play written by one of the supposed author’s colleagues, a novel in a series penned by a ghostwriter. The cases where author attribution shines are ones in which there exists (1) a finite list of potential authors (2) for whom we have writing samples in the same genre, and (3) the unknown text is itself long enough to have a clear style. If either of the latter conditions is unmet, the findings start getting fuzzy but are still salvageable. Failing the first condition, all bets are off.
And “Iterating Grace,” fails all three.
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