okay, heres something
if an old dirty man walked up to you and told you he was god, would you believe him? how could you prove he wasnt god? how could he prove he was? what if he was and you disbelieved? what if he was just some crazy bum who had too much to drink and you did think he was god? you couldnt really prove or disprove him, so would you believe that this man is god?
i think everyone here would agree to believe in god if he came down to earth, just for a few minutes and let EVERYBODY on earth know he existed we would have a lot of believers, but what if some people didnt believe he was god? could the believers prove he was god and then convince that god is real? god is a human invention, much like the wheel in that no matter what it will keep on going, god is like similazation of the never ending argumentitive nature of human beings, but still a human invention.