The crisis of recent months between the majority Buddhist Burmese and minority Islamic group calling themselves Rohingya serves as a reminder that Myanmar (Burma) is not a unified country in the sense of one nation, one state. The central government’s overreaction to an increase in Islamic radicalization in some rural areas by the brutal expulsion of 600,000-plus souls across the border into Bangladesh—though violent and tragic—should not be mistaken as unique in Myanmar’s history.

Self-described “old retired gardener who was now pushing eighty-six”, Mas Arai makes his final appearance as an amateur detective in Naomi Hirahara’s novel Hiroshima Boy. I would add cantankerous to his self-description, in all the best literary nuances of that word. This seventh and final novel in the mystery series finds Arai-san in Hiroshima, where he lived through World War II, surviving the atomic bomb blast. He is there to return the cremated ashes of his friend, Haruo, to his friend’s sister who lives on a small island named Ino, a short ferry ride from Hiroshima.

There is an old saw about advertising that only half of it works, but one never knows which half. And one suspects that despite all the data gathered and statistics generated, the online counterpart remains more art than science. Digital marketing involves navigating, in the words of Donald Rumsfeld, a number of known unknowns: things that at least one knows one does not know. For Westerner marketeers, however, China is largely a haze of unknown unknowns, things one doesn’t even know one doesn’t know.