Since the beginning of last year many artists have turned inward—or at least towards their immediate surroundings. Last week, during Berlin Art Week and Gallery Weekend Berlin’s Discoveries edition, over 70 exhibitions (some long-delayed) opened in the city’s galleries, institutions, project spaces, and private collections, featuring both established and emerging artists. The themes addressed are wide-ranging, but one recurring motif is an introspection expressed in portraiture: not necessarily in the figurative sense, but in using the framework of an exhibition to present a close study of one’s own identity, of a place, of an environment. Reflecting this idea most overtly is Alicja Kwade’s exhibition “In Abwesenheit (In Absence)” at Berlinische Galerie. Here, the artist moves away from her usual cosmic explorations of time in favor of a show that is most clearly read as a self-portrait. 314,000 sheets of pale purple paper are printed with her fully sequenced DNA, with the 0.1% of letters that differentiate her from others bolded. Many sheets line the room’s towering walls, while thousands more are encased in bronze archival boxes. Twenty-four speakers are arranged on a giant black steel ring suspended from the ceiling, projecting Kwade’s heartbeat as it rises and falls. Bronze molds …