But unlike Godspeed You! Black Emperor, a band whose artistic integrity (in the literal rather than figurative sense) remains protected to the point of a near media-blackout, Isis retain psysical contact and verbal communication with the world while remaining audibly - and artistically - autonomous. And that is what makes 'Panopticon' so completely satisfying. Like Tool's 'Aenima' or Radiohead's 'OK Comptuer' - ostensibly "artsy" albums that have been embraced by the mainstream - 'Panoticon' is both immediately enjoyable and instantly recognisable as a substantial artistic work and a significant cultural contribution. Sadly, Isis will probably never enjoy the commercial or economic success of Tool or Radiohead - primarily because eight-minute songs with little or no vocal accompaniment don`t tend to fare well in the short-attention-span theater of the pop pantheon. But then again, Isis probably wouldn`t write eight-minute songs if all they wanted was a few million dollars apiece and an arse-kissing from Jools Holland.