The ad showed up mysteriously. (Somewhere on the Cloud, perhaps, I had been identified as approaching the age when a person can start collecting her social security.) I clicked on it at random, and might have expected myself to exit within a matter of seconds, but a strange thing happened then. I kept watching. And now I am meditating on how it was that The Beverly Hills Doctor roped me in as he did, and held my attention for the duration of his half-hour- long infomercial, and that when it was over, I took out my charge card and ordered not one but three jars of Beverly Hills skin cream.