= Horizon-free Minkowski spacetime
Every event in complete <Minkowski spacetime> emits a future-directed <null geodesic> ending on <future null infinity>. Therefore its black-hole region $M\setminus J^-(\mathcal I^+)$ is empty and there is no intrinsic event horizon. The null edges of the <Minkowski conformal compactification> represent infinity, not hidden regions inside the physical spacetime. An accelerated observer can instead have an observer-dependent <Rindler horizon>.
Back to article page
