Text: It makes one nostalgic for the fear of LSD in the water, fluoride in the water, and saltpeter in the cafeteria food, presumably to create a docile population of human slaves with excellent teeth who keep hallucinating that they're uninterested in sex.
Entailment: People use to be afraid that their was LSD in their water.
Contradiction: It doesn't make one think back to when there was fear about odd additives in water.