Does the following successfully establish a presumption of strong global atheism?
"Define strong global atheism as the view that there is no god. There is a presumption of strong global atheism because theists propose the addition of a supernatural entity (a god) to what is already known to exist (the natural world).
That is, theists make an extraordinary claim, and extraordinary claims require extraordinary evidence. In the absence of such evidence, strong global atheism is warranted."