If you accept Darwinian evolution, do you subscribe to any idea that religion is an aid to the survival of one particular human species, the Homo Sapiens?
Did any other human such as Homo Neanderthals have any sort of religion, I wonder.
Could religion possibly help explain why only one human species still exists?
Does religion, whatever you define it as (it need not be theistic) have some sort of placebo effect?
In his latest book, Science In The Soul, Dawkins tackles this in a chapter called Science of Religion. He finds no evidence but mulls over a possible placebo effect.
In the history of religious wars does the stronger group become the more likely victors with the knowledge of God on their side?