In my time I've read many different books from many different genres. Among all the books that I've read, to this day Dune stands as the greatest book I've ever read, and it got me thinking. What if instead of the bible, or any holy text (Koran, Tanakh, etc..) dune was written in their place. The world might be more mathematically / scientifically inclined, and over the course of 2000 years our evolution might have changed so drastically people today could have the abilities of the mentats. That would be pretty damn awesome!