“We see the world as this huge kaleidoscopic field of information … and I think the way we see culture and the arts should also embrace that,” Doug Aitken says. In this conversation with Marc Spiegler, the interdisciplinary artist discusses his wide-ranging practice, from its roots in Los Angeles in the 1970s and 80s to his project Station to Station, which transformed a train along a 4,000-mile journey into a nomadic studio, to his recent collaboration with musician Jamie XX and creating sculptures that live underwater.