In 1964 two of the greatest science fiction writers of the twentieth century looked ahead 50 years and predicted what our modern world would be like. They got a lot of things right.
First Isaac Asimov. Asimov wrote over 200 books in his lifetime. Non-fiction books in every category of the Dewey Decimal system (the only writer to do so) and some important fiction as well.
Next, Arthur C. Clarke. Clarke is best known as the author of the book and film “2001: A Space Odyssey”, however he was the first to propose geosynchronous telecommunications satellites, pushed for manned space flight as an activist/scientist and helped create NASA, and was a trail blazing Ocean explorer.