If the universe is bounded then there will be an absolute frame of reference. This could be found by summing all the frames of reference up to the unltimate one ie your in a car travelling on road thats on the earh which is spinning on it axis and simutaneously moving about the sun . The sun is moving within the galaxy. The galaxy is moving within some larger structure and so on and so forth up to the bounded universe. what are the arguements for a bounded universe ?