The recreational use of psychedelic drugs, such as LSD or peyote, declined with some rapidity from the 1980s onwards as drug-users instead snorted up cocaine’s great gift of untrammelled narcissism. And yet the desire to live in a weird fantasy land did not quite disappear – far from it. Today, if you tell people that you are a pink giraffe, they are compelled by society to believe you and not judge you as being a deluded lunatic.