IPCC AR6 treatment of uncertainty
The IPCC AR6 framework for communicating confidence from evidence and agreement separately from probabilistic likelihood.
Also known as IPCC uncertainty guidance
The IPCC separates qualitative confidence from quantitative likelihood. Confidence depends on the type, amount, quality, consistency, and agreement of evidence.
That approach is useful for Brain because it demonstrates that a serious evidence process can communicate uncertainty explicitly rather than hide it behind a binary label.