Mathematical Debugging Lens 2 - Image Index | Yenra A City at Night in a Bowl: A hand grasping a small, reflective bowl containing an intricate cityscape at night. The bowl's exterior is not visible as it rests on the back of a phone or tablet screen displaying this city map. The left hand is partially obscuring the top of the bowl and is reflected in its surface with the thumb positioned above the bowl's rim. The background appears to be a darkened room, but the light from the screen renders the setting indistinguishable. This image could be an advertisement for a navigation app or mapping service.