We know fire is real and has been seen and even photograghed by many firemen and campers.But God has already been proven:
" "A REPORT by the Church of England’s doctrine commission states that hell is not a fiery furnace after all; rather, it is an abstract place of nothingness. “There are many reasons for this change,†the report explains. “But amongst them have been the moral protest from both within and without the Christian faith against a religion of fear, and a growing sense that the picture of God who consigned millions to eternal torment was far removed from the revelation of God’s love in Christ."
God MUST have contacted the Church of England's doctrine commission who else would have the authority to cancel hellfire? Otherwise you would be claiming that people have thought up hell themselves.