Klaus Bollinger contrasts closed, rule-based systems with open systems that communicate with their environment, and change and grow. He goes on to contrast structures based on pressure with structures based on tension. He discusses several projects he has worked on as structural engineer, including his collaborations with Coop Himmelb(l)au on BMW Welt (2007), the Musée des Confluences (2014), Dalian International Conference Center (2012), and the Busan Cinema Center (2012). To illustrate his concept of non-orderly order, Klaus Bollinger, contrasts the diverse and imaginative bridge designs of the early industrial era with the rigidly systematic solutions popularized in the 1850s by Carl Culmann. He describes his evolutionary process in working on Dominique Perrault’s Piazza Garibaldi in Naples (2015), Mario Bellini’s Deutsche Bank tower in Frankfürt (2011), Coop Himmelb(l)au’s European Central Bank (2014), and a music pavilion for the 2011 Salzburg Music Festival with Soma Architecture.