No Causal Chain Proceeds Among Multiple Lawful Alternatives Without Selection - A Structural No-Go Result

This note states a structural no-go: no causal chain proceeds among multiple lawful alternatives without selection — the taking of one alternative within the admissible set as the continuation actually realized. Admissibility presents possibilities; it does not actualize them. The paper isolates the distinction between admissibility (the standing of a possibility as lawfully open) and selection (the taking of one possibility as the one realized), and shows that a chain proceeding through a multi-alternative point requires the latter, not merely the former. The result is presented as a compact structural no-go with a clear falsifier.