There are many great predictions hinting to future (it is from 1968 - can you believe it?) innovations throughout the movie. I might not have found all them because I keep falling asleep while watching it but I will keep trying to find them all.
I believe that we should call it a modernism show, albeit exhibited in the form of a movie. While it might feel "boring", it forces you to rethink what philosophical level that a two-hour film can achieve. The focus on questions about life, intelligence, and time, is worth more attention than the sci-fi part (though the special effect of this movie is already way ahead of its time).
The eighth wonder of the world. Easily 30+ viewings since I was a little kid. Nothing new to say here; simply wanted to add another pair of hands to the ocean of applause for my absolute favorite thing, the only indisputably perfect movie, the answer to the question of Is Life Worth Living, Man's greatest achievement, two thousand one a burger-flipping space odyssey