McCulloch, first of all, thank you for your much appreciated efforts. You unbiased jesture say much for your personal integrity.
I guess you got my "bio" from the TruthBook site. I am a moderator there, and along with this site, it is wonderfully open, and just fun to "poke-around".
What I find so attractive about the Urantia Book, is that it offers such a grand overview, explaining in beautiful concise prose, how the universe and everything in it relate, and how and why it was all created. But it goes further! It shows not only where we came from, but describes in great detail how we will proceed once this Universe has been "completed". I have been reading the Urantia Book for over 30 years now, and it still amazes me everytime I open it. It "demands" nothing, and rather than claiming to be a higher authority, it brings together all backgrounds and shows our commonality.
While the claim of authorship may see difficult to accept, after one has read the entire book it is abundantely clear that in breadth of understanding understanding, and continuity and quality of writing, is beyond the capability of any human, or even any group of humans. That, coupled with the fact that no one has anything to gain by creating such a tome, except if it is what it claims to be; The fifth in a series of revelations to mankind. There is no charismatic leader(s), and no one makes any money for its sales. It is, I believe intellectually worthy of consideration by any who honestly would like to understand more about religion, philosophy and cosmology.
Bro Dave