Heroes Heridos / Lehmann Maupin / Hong Kong / Nov 1 – Dec 22 / By Diana d’Arenberg Parmanand / It is perhaps fitting that French-born Algerian artist Kader Attia is based in Berlin, a city of scars. A city where the ruins of a wall that once divided it are still visible; a city in which the atrocities committed during wars and by two repressive regimes are memorialised; where the architecture of communism and fascism stand side by side, sometimes pockmarked with bullet holes. It is a city where the scars are on display so that you are in constant confrontation with history and memory, and never able to forget the past.  And so it is with Attia’s work. Working across diverse media and forms – photography, film, collage, sculpture, drawing and installation – the artist has built up a two-decade career defined by rigorous research. Through his work he critiques power and hierarchical structures by examining the scars, trauma and injury inflicted by colonial and imperial powers on non-western cultures. Exploring the relationship between non-western cultures and western thought, he regularly …