KW Berlin opens “Poetics of Encryption,” an extensive group exhibition that builds on curator Nadim Samman’s eponymous book, illuminating “Black Sites, Black Boxes, and Black Holes”—terms that indicate how technical systems capture users, how they work in stealth, and how they distort cultural space-time. The show gathers both historic and newly commissioned works by over 40 artists including Nora Al-Badri, Clusterduck, Kate Crawford & Vladan Joler, Simon Denny, Eva & Franco Mattes, Trevor Paglen, Rachel Rossin, and Troika.