J jack New member Nov 2, 2010 #1 of thousands of years ago? How much of our civilisation would be left 20,000 years from now. Not a lot - so why would it not be possible the same thing happened a very long time ago?
of thousands of years ago? How much of our civilisation would be left 20,000 years from now. Not a lot - so why would it not be possible the same thing happened a very long time ago?
