When the soundtrack for The Girl With The Dragon Tattoo by Trent Reznor and Atticus Ross came out. Trent announced it on his twitter by saying "propagate, motherfucker!" These two words went deep inside my head and I had to make something out of them... For this poster, the design of the lines is actually based on a similar style used by Rob Sheridan. Nine Inch Nails' main Graphic Designer. I was so fascinated by that idea of the lines crossing each others' paths that I had to try it myself and seemed to feet the idea of propagation really well.
Done with Photoshop & Illustrator.