2+2=5

The song lyrically is talking about being in a situation where everything you do is controlled by a higher power and being trapped. The repeat of two plus two always equals five pushes the message because it shows the fact that the singer is some how being controlled in a situation. We know two plus two doesn't equal five, but it shows the control of a dystopia. This song is an allusion to 1984 because in the book 1984, Big Brother can do anything and if he wants two plus two to equal five, he will.