Closely related to Verne’s science-fiction reputation is the often-repeated claim that he is a “prophet” of scientific progress, and that many of his novels involve elements of technology that were fantastic for his day but later became commonplace. These claims have a long history, especially in America, but the modern scholarly consensus is that such claims of prophecy are heavily exaggerated. In a 1961 article critical of Twenty Thousand Leagues Under the Seas’ scientific accuracy, Theodore L. Thomas speculated that Verne’s storytelling skill and readers’ faulty memories of a book they read as children caused people to “remember things from it that are not there. The impression that the novel contains valid scientific prediction seems to grow as the years roll by”. As with science fiction, Verne himself flatly denied that he was a futuristic prophet, saying that any connection between scientific developments and his work was “mere coincidence” and attributing his indisputable scientific accuracy to his extensive research: “even before I began writing stories, I always took numerous notes out of every book, newspaper, magazine, or scientific report that I came across.”

https://en.wikipedia.org/wiki/Jules_Verne