It seems to me that atheism has to be a belief. A fact is something that is 100% known, and while we may be almost certain, we can't prove there is no god. That's why, when answering the questions when I joined this site, I said "atheist", but when it asked for the percentage I was sure there was no god, I had to put 99.99%. Maybe this has been discussed to death on here already, but I haven't been around long and haven't seen it. Thoughts?