We would be fools to disregard the thinking of great minds like John von Neumann, but even more fools to consider Gene Roddenberry a great mind. For the purposes of prognostication, he wasn't a mind at all; he wasn't even trying to predict what would happen in the future, but to dress up 19th-century Horatio Hornblower naval drama and 20th-century social commentary in whizbang clothing, so people would watch it and he could sell Chevrolets and vitamin pills. See https://news.ycombinator.com/item?id=28519184.