[ArGee]

I have never understood how non-belief could be considered a belief.

Non-belief isn't a belief. An assertion that G-d does not exist is a belief, especially since a negative can not be proven.

Shalom.

[R. Scott]

Neither the existence nor the non-existence of the Deity can be proven.
I know that my little dog is lying at my feet.
I know that there is no grizzly bear lying at my feet.
Neither is a statement of faith.
Believing in the existence of the Deity can be held to be in the realm of believe, because there is no direct evidence to support it, unlike the existence of my dog or the non-existence of the bear.