2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/144698We study a flat spacetime with a compact spatial dimension and dispute the claim of Bansal, Laing, and Sriharan that a local experiment can determine whether or not an inertial observer is "privileged" in this spacetime.18 pages, 1 figure, this is a commentary on gr-qc/0503070v1. changes in v2: title changed, typos corrected, minor changes in text, definition of "topological locality" revised, references addedGeneral Relativity and Quantum Cosmologytext