Terry,
Yes, religions have to be rational to the extent that they must function in the material world; but only to that extent. Some go to great lengths to renounce materialism and transcend.

...and this goes back to evolving religions. They must adjust as the material world changes (due to science). Boy, I'd be pissed to; I hate change (hey, who moved my cheese).

Even purple rhinos can be shown to be somewhat rational, can't they?

~~SA

P.S. I see we're posting over each other. Apologies for the misunderstandings (unread posts, responses out of order, etc.)
~S

Pyrolysis creates reduced carbon! ...Time for the next step in our evolutionary symbiosis with fire.