Buzz I would not put Casey in the same list as the other guru's
I read Casey's books depicting what he thought would happen in the 80's and the 90's. He was right on. I did not see a book for the first decade of 2000 or 2010. I do know that the two that I read In 1980 and 1990 were very accurate. Casey was very specific while those other guru's are more a doom and gloom that will eventually happen sometime in one's lifetime.