★ A momentary gorgeous purple glow heralded nothing but a dull gray morning. The cloud layer was featureless, like a clear dawn sky that had simply failed to ever brighten. No shadows moved to track the passing hours. The temperature was just short of being cold. In late afternoon there was a silvery light in the southern distance, but the shine stopped on the building faces just past 15th Street. Up on the West Side at rush hour there was light on some but not all of the tower tops, again just out of reach. The clouds overhead were acquiring a pink tinge and, a full workday after they might have, beginning to thin out toward blue.