Im gonna quote myself from another thread.

Quote Originally Posted by Enoch View Post
Nothing can stop the pendulum from swinging. Ages of enlightenment have been followed by so called dark ages and so on ad infinitum. Empires rise and fall. Any excess will be cancelled out. Every action has an equal and opposite reaction. The only way to transcend this is to find equilibrium.
That explains the so called advancements and declines of cultures and races. It has nothing to do with any kind of racial superiority. Blacks where perfecting cultures such as Egypt while whites where living in primitive tribes such as the Pics and the Gaals. Then the tables turned, and they will continue to turn until people can learn to live in balance as we once did.