Along the way, 2001: A Space Odyssey made some bold predictions about what life would be like 33 years later. Many of them turned out to be true, especially when it comes to technology, while other predictions weren’t as accurate. Some hit the mark but missed the date, while others still have a long way to go before they move past the practical and/or theoretical stages.

One very obvious prediction of 2001 that hasn’t panned out, at least yet, is routine, luxurious space travel. But like many other things in the movie, it doesn’t feel like what was predicted was off track; it’s just that— many decades later—we still haven’t got there yet.

Of all the future predictions depicted in 2001, artificial intelligence is the one it managed to predict so well, yet get so wrong at the same time. The homicidal computer known as HAL 9000 suffers a nervous breakdown due to an impasse of logic in one of Stanley Kubrick’s most pivotal and memorable scenes.