When I read Stranger in a Strange Land as a teenager, the messages about freedom and religion and sex didn’t seem too profound to me. But eating dead bodies- that was something to think about. Made sense, after all. Maybe that’s why Soylent Green never made an impact on me. It was only logical, what with the hunger and overpopulation, and meat was harvested in a rather less disturbing way than in the warren surrounded by snares in Watership Down.