Perhaps Kubrick didn't want the plot to be too easily understood right away. Perhaps he wanted it to be appreciated by fans long after seeing it and not right then. Like an artist who's work is unappreciated until long after his death. So he wanted it to be a mystery to most people at the time of watching it. This way whenever they unravel the mystery they can greater appreciate the work.
On the other hand, maybe this film should have been longer and cut up into several smaller films as in LOTR and Star Wars. There is just too much left out in a smaller time format. Problem is it was a rare sight to see films done that way then, so perhaps he was actually less of a visionary for not seeing the possibility of a series for this film rather than one continuous obfuscated film.
Or maybe he was going for the film with the most info and least dialog. Wanted to show the viewer the events rather than talk about it because it was explained in the book, and he meant the film to be meaningful only to "the true fans", the ones who took the time to read books. As if to say, if you don't read books you are a numbnut and I want you to be confused as a punishment to your laziness. hehe
btw I left that comment for last for a reason. Want to bet how many lazies here would have missed that because of the length and boredom of the BS I put before it? Even more without this statement right here.
