No Causal Chain Proceeds Without Initiation - A Structural No-Go Result

This note states a structural no-go claim: no causal chain proceeds without an initiation. The argument turns on the distinction between mere order and causal derivation. Derivation transmits occurrence from a prior event to a later event; it does not generate the occurrence it transmits. A chain in which every occurrence is derived from a prior occurrence within the chain therefore supplies no occurrence to derive from. A causal chain that proceeds must contain an occurrence within it that is not derived from any prior occurrence within the chain: its initiation. The result is presented as a compact structural no-go with a clear falsifier.