Well... The world CURRENTLY does revolve around America, and has for almost a century now. The American dollar is the world's reserve currency which has ramifications and benefits that even most Americans don't understand. We are clearly the strongest militarily, google major, life-changing inventions,Americans dominate there, we are crucial in almost all major foreign policy (good and bad) decisions globally made. etc... That's the point. It's a stretch to try and fit America into any prohecies. Therefore we have to greatly diminish, and many people think it's demise will be swift with nukes or a complete dollar collapse, and the "kings of the east" (read China) has to grow.