It sits proudly on the same shelf with Pink Floyd's Dark Side of the Moon, Radiohead's OK Computer, Porcupine Tree's Fear of a Blank Planet, and The Mars Volta's Frances the Mute. Timeless music that moves effortlessly from song to song, right down to the final track that is essentially the title track and the tune that in and of itself defines what really great modern progressive rock is all about. This album is nothing short of perfection.