In an internet, content saturated age, I can believe that some people don't have an inner monologue as every waking thought is consumed by said content. As someone whose inner monologue sounds like a married couple arguing interrupted by some random neighbor kid shooting out the windows with a slingshot, I can understand this temptation. And how do you picture a "cool, crisp, autumn day"? Easy: image of a sidewalk fading into a distant sunrise obscured by trees on either side of the path, with a multitude of color in the leaves and the sky, some crunchy leaves covering the green grass, many still in the sky, and many still on the trees.