That is something I have said for a long time.I don't think any sci-fi movies made since has been nearly as good.And with all the advances with computer graphics and such that hard is to beleive but you need more than graphics I guess is the answer.And for anyone who is having a hard time understanding what 2001 was about I would reccomend the book which explains it.It is a deep movie with meaning.Things like Star wars don't even begin to compare.
Okay, I didn't mean to dog out 2001. I just didn't like it. It's good for some but not for me. Another cult movie which I couldn't stand from Kubrick is Dr. Strangelove. Again, just my opinion.