Well, it's infinitesimal chance for the elephant thing. It's completely unknown for "god". In science, you develop a probability for different theories based on the evidence provided-- if a lot of evidence supports one theory, it's more likely, and a more useful theory. When there is
no evidence either way, then it's not likely or unlikely, it's just a hypothesis; something you ignore for the time being. There is essentially no evidence for or against most of religion, and therefore it is can be considered a hypothesis -- I consider it useless, not because I believe it isn't true, but because I choose not to believe anything about it. I may just be mincing words, but I like to be precise, as I'm trying to take the scientific perspective on the issue.
The reason I can say that the intangible elephant has an infinitesimal chance of existing: an intangible elephant-shaped humming creature would
not be an elephant, as there is a lot of evidence that elephants are visible.
It's interesting... for some reason the vast majority of objections I tend to get are from the atheists. That makes little sense to me.