This manuscript develops the Relational Theory of Classical Fact Formation (RTKF), a conceptual framework intended to tighten the bridge between standard unitary quantum dynamics and the emergence of classical facts. The paper is positioned as a serious conceptual foundations proposal and research-program contribution, not as a claim that the measurement problem has been solved in full generality. RTKF defines classical facthood more strongly than bare decoherence: a sector counts as factual only when decoherence, redundant environmental encoding, and dynamical stability align strongly enough to support a robust, macroscopically readable record. On that basis, the manuscript introduces a fact functional as a structured phenomenological proposal for a candidate classicality witness, argues that classical observer states are necessarily confined to single record sectors, and shows that under phase invariance, coarse-graining invariance, and compositional consistency, quadratic branch-class weighting is the uniquely natural candidate measure. The resulting picture interprets apparent collapse as effective fact formation within globally unitary dynamics while identifying concrete mathematical and experimental tasks required to sharpen the framework further.
Jan Lierzer (Mon,) studied this question.