In 1965 the city of New York started putting fluoride in the drinking water. Mildly crazy statements started appearing in the WT publications with greater emphasis on 1975 and Armageddon. Since then the WT has made crazier statements culminating in the supremely crazy overlapping generations, 7 knuckleheads are the only channel between God and man [except for a brief moment during the ARC] etc etc etc.
Fluoride accumulates.
Don't tell me that's just a coincidence.