Scientific Remix: Epistemic Idioms and the Spread of Data Science.

Scholarship on science has long contained a tension between accounts emphasizing convergent forces and those highlighting divergent practices. This article addresses that tension through an ethnographic study of data science. It advances the concept of epistemic idiom-a recognizable and portable pattern of practices that evolve alongside knowledge-making tools, analogous to musical idioms arising from the interaction of material affordances and learned techniques. Through analysis of a project attempting to sequence chromosomal centromeres, I show participants enacting the nomad idiom of data science: a data-led approach involving tools for iteration and exploration, cross-disciplinary borrowing, bricolage construction of bespoke assemblages, and the motivation to scale. Though the project failed to sequence centromeres, it generated unexpected discoveries, challenged established theories, and yielded lasting changes to scientific practice. The case reveals how epistemic trends can spread without being totalizing-the nomad idiom enabled both convergence (shared technical toolkit) and divergence (local adaptations, surprise outcomes) simultaneously. The epistemic idiom concept complements existing STS frameworks by explaining how practices can migrate across epistemic communities, while those communities retain distinct cultures. It speaks to concerns over computational universalism and epistemic monocultures, demonstrating that alternatives exist-ways for scientific trends to be borrowed rather than imposed, becoming remixes instead of replacements.