Theory of the Evidence Spectrum

The theory that evidence exists on a spectrum, not as a binary category of "evidence" vs. "not evidence." The Evidence Spectrum recognizes that claims can be supported by evidence to varying degrees, in different dimensions, from different sources. A single anecdote is evidence—weak evidence, low on the spectrum, but still evidence. A randomized controlled trial is stronger evidence, higher on the spectrum. A meta-analysis of many trials is stronger still. The spectrum includes many dimensions: strength, relevance, reliability, independence, replicability. The Theory of the Evidence Spectrum calls for evaluating where evidence falls on multiple axes, not simply asking "is there evidence?" The question is never whether evidence exists but how good it is, how relevant, how reliable—where it sits on the spectrum.

Example: "He dismissed her anecdote as 'not evidence.' The Theory of the Evidence Spectrum showed why that was wrong: it was evidence, just low on the spectrum—weak, but still evidence. Dismissing it entirely was itself unscientific. She wasn't claiming it proved anything; she was claiming it pointed somewhere. The spectrum let them discuss where it fell, not whether it counted."

Theory of the Evidence Spectrum by Dumu The Void March 7, 2026