well in effect atheism is a belief of non-belief, as tefal said, there is no-proof either way, and as i am a scientist, you need proof for it not to be a theory/belief. Theory on human existence, the big bang etc, are no different to saying it is a belief, or reversing it and saying a god that created it is a 'theory'
Obviously a god creating stuff is not a theory, because theories are based on current facts, not books written by technologically disadvantaged people.
I've partially forgotten what my point was so I'll let others work out if there was one.
It has nothing to do with books.As said above. It could be a totally unacknowledged deity.
A scientist will keep all doors open until data doesn't fit it. Therefore all true scientists will be agnostic.