According to this simple rule, nearly all religions have been proven false (or at very least embellished beyond usability), so why do people still believe them?
http://en.wikipedia.org/wiki/False_dilemma
I remember very clearly being told that I would go to hell to burn in a lake of fire screaming at the top of my lungs forever... and that nobody would come to help me... unless I accepted Jesus. I was 5 years old. Can you imagine?