Earlier this year, I turned 72. And so far, I am not doddering, although I expect that will come soon enough. But when I mention my age to people—and at this age there’s none of that reluctance about revealing your age that, as young people, we might have had—they react with surprise. They tell me I don’t look 72. But what does 72 look like? Old? What does old look like? Grey? But grey (hair I mean) is fashionable these days and one often sees silver/grey/white highlights in what is otherwise black or brown hair.