JAPAN! It began with the slow dissolve of a long-haul flight and ended with an android: Hiroshi Ishiguro’s ALTER4, to be exact, its eyes rolling, mouth agape, arms raised in ecstasy.I’d come to Tokyo for that city’s edition of Prada Mode, an “itinerant private club” for which the Italian luxury brand enlists an artist to organize a program of talks and events specific to its given location. Invitees so far have largely been excellent: Martine Syms (Los Angeles), Trevor Paglen and researcher Katie Crawford (Paris), the world-historically great filmmaker Jia Zhangke (Shanghai). In Japan, our host