Theory of Evidence Elasticity

A framework proposing that evidence itself is elastic—that what counts as evidence can stretch across contexts, disciplines, and cultures without breaking into irrelevance. Evidence Elasticity suggests that evidence isn't a fixed category (only RCTs, only quantitative data) but a stretchy concept: anecdotal evidence stretches into clinical evidence, qualitative evidence stretches into quantitative, experiential evidence stretches into empirical. The theory identifies evidence's elastic limits: when does stretching become irrelevance? When does evidence become anecdote? Understanding evidence requires understanding its stretch. A meta-framework studying how conceptions of evidence stretch across history, culture, and discipline. The Elasticity of Evidence examines how evidence has been defined—from legal evidence to scientific evidence to historical evidence—and how these definitions stretch under pressure from new domains. It asks: what are the limits of evidence's stretch? When does a new form of evidence break rather than stretch? How does evidence recover from crises (the replication crisis stretching evidence standards)? It's evidence reflecting on its own history and possibilities.

Theory of Evidence Elasticity "In medicine, they demand RCTs; in anthropology, ethnography is evidence. Evidence Elasticity says both are evidence—just stretched for different contexts. The question isn't what counts as evidence; it's how far you can stretch the concept before it breaks."

Theory of Evidence Elasticity by Nammugal March 4, 2026