This thread has some great examples of times that authors got things so super accurate that people started to question how they knew so much! It includes Tom Clancy’s military knowledge, Kubrick’s’ bomber details, and more:

(This is a reference to a character from The Good Place: Douglas “Doug” L. Forcett is a former stoner from Calgary, who during the 1970s gained fame in the afterlife by making an almost perfectly accurate prediction about its inner workings. On October 14, 1972, during a magic mushroom trip, he described to his friend Randy the nature of the afterlife to a surprising degree of accuracy – getting it “92% correct,” according to Michael.)

(via: Just Sock Thoughts)