= Solution
Locality in <quantum theory> is not one interchangeable condition. Spatial concentration of a <wave packet> concerns a state description. <Quantum no-signalling> restricts operational changes of remote statistics. <Microcausality> concerns commutation of spacelike <observable> algebras. The <spectrum condition> constrains energy-momentum and stability, while <primitive causality> concerns determination of future-domain expectations by initial-region data. The distinctions are clearest when all five are discussed; none should be replaced silently by the <Bell factorization> examined elsewhere.
\b[Wave-function tails and entangled correlations are not by themselves controllable signals.] Conversely, absence of signals does not by itself supply a local initial-value dynamics or positive-energy spectrum. Each claim must specify the <observable> algebras, allowed operations and relevant causal regions.
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