Try looking at any familiar object — say, a chair — and then drawing it freehand. Now, turn the chair sideways and draw it again. Chances are the second drawing, once you turn it right side up again, is fresher and more accurate. It's free of the baked-in assumptions you have about the whole concept of "chair." What if we could do the same thing with aging? That creative exercise is the exact one that prompted the title of social gerontologist and journalist Jeanette Leardi's book Aging Sidew...