i agree with TREXOR that the song sums up the album, but also, the first instrumental version of exchange was after the song "Inertia Creeps" which is apparently a song about how someone stays in a relationship because of the sex, and the instrumental exchange I believe is about the climax from having sex with that relationship in mind. Perhaps it's showing the circular motion of problems, how if we relax, and just say that it's all ok, it can cause other problems and damage our own lives.
i agree with TREXOR that the song sums up the album, but also, the first instrumental version of exchange was after the song "Inertia Creeps" which is apparently a song about how someone stays in a relationship because of the sex, and the instrumental exchange I believe is about the climax from having sex with that relationship in mind. Perhaps it's showing the circular motion of problems, how if we relax, and just say that it's all ok, it can cause other problems and damage our own lives.