A butterfly flies through the forest rain And turns the wind to the hurricane I know that it will happen ‘Cause I believe in the certainty of chance A schoolboy yawns, sits back and hits return While round the world computers crash and burn I know that it will happen ‘Cause I believe in the certainty of chance And I believe I can see it all so clearly now You must go and I must set you free ‘Cause only that will bring you back to me I know that it will happen I'm sure that it must happen Oh I know that it's gonna happen Because I believe in the certainty of chance