Before starting the shredder

congratulations to your friend on getting an idea into "hard copy" that we can see.

OK the shredding ...
The first thing that struck me was the sound quality - it's pretty hard to hear, and very "dirty". As
@Alcove Audio says, a soundtrack is half the movie, and in a video like this where the voiceover is
more than half the movie, it needs to be much cleaner. These days, it's really easy to get a good quality recording using a smartphone and good blanket. When you don't need to worry about a mic being seen in any of the shots, there's no excuse for not having a great voice-over recording.
Partially related to that, was the theme/title ... I just can't figure out what the paradox is! But neither can I hear what
he thinks the paradox is, because I just cannot hear what's said in the last couple of phrases. That's partially due to the quality of the recording, but also to accent/diction. Again, if the spoken word is all-important - as it is in this piece - then it has to be perfect in every respect.
Visually, it's all pretty good, with the exception of the bed/night-time scene (1:33-2:03). That looks like it was filmed in low light/at high ISO, at the very limits of the camera's ability. If that's the case, it'd have been better to film it in brighter light and darken it in post-production (plenty of YouTube videos on how to achieve this). Some of the transitions to what I assume is stock footage are a bit jarring, from a colour balance point of view, but the editing is smooth enough.
Overall, a good practice piece.