Stream of Thought (2009) is the first collaborative album by American ambient musician Steve Roach and Norwegian musician Erik Wøllo . Described as "A continuous stream of sonic consciousness", with an uninterrupted flow of 19 interconnected pieces. The concept to the album’s structure was like film editing, with a sense of time and pacing consciously developed to activate a visceral experience. In 2011 The Road Eternal was released, their second collaboration album.