Amber Puppy What can an amber puppy mean in a world of Siris and driverless cars?   I was older, one of the Baby Boomers. Life was a series of warnings: Don’t fall over rugs or loose cords, don’t overeat, don’t go to bed before nine, drink coffee after midday, watch too much Netflix. When the new puppy arrived one birthday, rich brown as a raisin, I heard it shadowing me: Don’t trip on the dog’s lead.   There was much to be anxious about. One day, walking through the park—the rain had eased, spring waterfalls spilled into the creek,…