I know who are talking about.. The person is Graham Hancock and I have read most of his books. He gives very detailed explanation in how there could have been an ancient civilization before the Ancient Egyptians and so forth. He does make a good case.. I still think there was a main civilization that disappeared in an instant.. I think the story about Noah was about in how the main civilization disappeared.
I know about Graham Hancock and have two of his books. Find them very provocative and interesting. I was talking about something publicized earlier than Hancock. A separate thought—Hancock talks about a small group of wise men/teachers who dispersed through the world bringing knowledge to various groups to kick start civilization after the universal catastrophe. Check out references to Melchizadec (sp?) in the Bible. How Abraham bowed to his superiority, and Jesus was described as a priest after Melchizadec (this may not be the precise description). Was M one of these wise men or a successor in an established “school”.