In fifteen years, people of retirement age will outnumber children for the first time in U.S. history. But, the staff writer Adam Gopnik finds, the elderly are poorly served by the field of design, whether it’s a screw-top plastic bottle or the transportation system of a major city. Gopnik visited the M.I.T. Age Lab, where he tried on a special suit that simulates the pains and difficulties of advanced age for research purposes. And, to put the issues in context, he called a much older friend: the painter Wayne Thiebaud, who, at ninety-eight, is still leading an active career and is preparing for an upcoming exhibition. Plus, the writer Elizabeth Strout has set many of her books in Maine, including “Olive Kitteridge.” She brought us to one of her favorite haunts: a steep hill on her college campus, where she would sit and look out over the world.  And in a new sketch by Colin Nissan, a routine call for technical support leads to a chilling transformation.