This song explains how the Universe works, or does it?

A Canadian university student has produced a physics version of the classic song Bohemian Rhapsody.

You can watch the song, called Bohemian Gravity, by clicking read more. There is a lot of it that you won't understand, but that's OK, because the song is describing how the Universe works, and the Universe is complicated.

Actually, nobody really understands how the Universe works but lots of physicists (like Sheldon on The Big Bang Theory) are trying to work it out. One of the best explanations is called string theory and that's what this song is about.

Wikipedia has a very detailed string theory article here. If you can work it out please explain it to me. I have no idea.