The sets were designed by future KLF frontman Bill Drummond, who was given but a single direction by Campbell: "Is it heroic?" Meanwhile, the cast – most of whom were tripping on super-strong acid brought over by Robert Anton Wilson – included Jim Broadbent, Bill Nighy, Chris Langham and, by the time the production had moved to the National Theatre in London (where the other half of KLF, Jimmy Cauty, was in the crowd), iconic actor Sir John Gielgud, voicing the part of the super-computer FUCKUP. Wilson himself played a role that basically involved lying on the stage and repeatedly bellowing the maxim of countercultural magus Aleister Crowley: "Do what thou will shall be the whole of the law!"

Operation Mindfuck may have been devised to fuck with other people's minds, yet mainly fucked with those of its prankster progenitors. Thus, in Cosmic Trigger, Wilson's follow-up to Illuminatus!, he details his harrowing experiences in "Chapel Perilous", a sort of existential crossroads in which, after years spent investigating conspiracies, necking acid and noticing various uncanny cosmic "synchronicities", he came to the realisation that his options were either full-blown paranoia or agnosticism. He opted for the latter, and set about outlining this healthily playful scepticism. There's nothing about the universe that can be said with certainty, he affirmed. But what we can say with certainty is that the way we say something certainly creates certainty-effects, and thus forms an important tool in our continued grappling with that obstinate, unruly reality, trying to attain a passable working knowledge of it so as to make it work for us, to get some task or other done. This is close to what Discordians understand as magic: making thoughts and ideas and the imagination cut into and modify reality.