AV Club: Is there some reason so many cartoonists have such idiosyncratic political and social views? Peter Bagge is a libertarian as well, and Steve Ditko is an objectivist, and R. Crumb has his odd open marriage, and then there’s whatever Dave Sim’s got going on.

Chester Brown: [Laughs.]

The central idea [of All Watched Over By Machines Of Loving Grace] leads Curtis on a journey, taking in the chilling über-individualist novelist Ayn Rand, former chairman of the Federal Reserve Alan Greenspan, the “new economy”, hippy communes, Silicon Valley, ecology, Richard Dawkins, the wars in Congo, the lonely suicide in a London squat of the mathematical genius who invented the selfish gene theory, and the computer model of the eating habits of the pronghorn antelope.

You can see why Zoe Williams once wrote that, while watching one of Curtis’s programmes, “I kept thinking the dog was sitting on the remote.”

…he decided to finish the battle on his own terms. Even when we went to Dignitas,” Lavis recalls, “it was, ‘I’m pulling the pin on the hand grenade. I’m murdering MS. It’s not murdering me.’”