'This article proposes speculative bibliography as an experimental approach to the digitised archive, in which textual associations are constituted propositionally, iteratively, and (sometimes) temporarily, as the result of probabilistic computational models. Speculative bibliography is offered as a complement to digital scholarly editing, and as a direct response to the challenges of scale and labour that will make comprehensive editing of digital archives impossible. Rather than acting on specific, individual texts, a speculative bibliography enacts a scholarly theory of the text through a computational model, reorganising the archive to evidence a particular idea of textual relation or interaction. Such models, in which textual relationships are determined by formal, internal textual structures, constitute bibliographic arguments that can be verified, amended, extended, or contested on either humanistic or computational grounds.' (Publication abstract)