1985: I wanted to write the ultimate "droning on an E barre chord" song.
I also wanted to see how many times I could double the tempo before it got too fast to play.
Turns out the answer is "four times if you start slow enough".
I had a clear and quite specific plot and theme in mind when I wrote the lyrics, but people have
read a wide variety of meanings into it and I don't want to spoil anyone's personal interperetation by explaining myself here.