In 1986, Whitley Strieber and James Kunetka published a book about an unlikely future called “Nature’s End”. In it, the world is so beset by environmental problems that were left over from the 1980’s, that a cult leader calling for 1/3rd of the planet’s population to commit suicide in order to cull the population is taken seriously. While the novel is ridiculous and events have proven its apocalyptic vision mostly incorrect, there was one element in the story which was true to life: in this future world, there was widespread use of mood altering drugs. The use of mood altering...