This Article tries to answer this question: which theory can help us to understand & explain the Nature of Arab World Changes in the nature of Arab World Changes in sol, and predict the future trends of these changes? Author argues that everyone of these six theories including failed state, uprising against humiliation, Pervasive penetration, fourth Wave of Democracy, modification of Anti – Americanism and return ti Islamic Identity, can Explain some aspects of changes in Arab world, Mean while, the theory of "Anachronistic Governance", Can give us a more comprehensive Explanation of these changes.