There's a certain bench at the Arboretum. It's near a place where gravel path intersects with calm backwater, where herons stand just beyond the reach of a good lens. Kids and dogs love to play there, ducks congregate and sit in a row on a half-submerged log. People walk, stroll, jog along the path, some oblivious to the beautiful surroundings, some nodding and smiling at their fellow pedestrians. I wonder if they notice a middle-aged couple sitting close together on that bench in the cooling twilight, taking photographs of the sky? Perhaps a 20-something thinks, "Look at those old people ... who do they think they're kidding?" The "old people" smile and snap off another shot.