Contrary to the conventional wisdom held by many, not only the dominance of the U.S. in the post-Cold War era is much exaggerated, but also its days as a hyper-power are ending. Instead, the world is slowly but steadily evolving towards what Dr. Baofu originally calls the dawn of 'the post-post-Cold War era' in 'the world of titans' for a tremendous remaking of world order, to be governed by different types of empires crossing regional borders. This has important implications for understanding the logic of empire-building, be it in the past, present, or future, to the extent that the current theoretical debate on international relations among different paradigms is as much misleading as obsolete. The current debate also obscures something more tremendous in the long run, in relation to the emergence of what Dr. Baofu proposes as 'the union of the unions' in the farther future that humans have never known, both here on earth and later in deep space.