What happens when you choose to make a hardcore futuristic Science Fiction movie, as accurate as possible on the science? You get a movie that not only outlasts the built-in obsolescence of its title, but remains futuristic and relevant decades after its forecasted due date.
What's more, as Stanley admitted in several promotional interviews at the time, he not only wanted this to be as true as possible to the science in the fiction, but terrifying as well. In many ways, 2001: A SPACE ODYSSEY is Kubrick's first Horror movie.