Don't confuse the pen for a pencil. The permanence is in that the mistakes are never really erased... only forgiven. Whether you believe that God exists or not, I am merely pointing out flaws in your scientific method due to a 'reified' notion of proof or prove. There is no word play... I have studied math and science and I make use of what I have learned as an engineer. The method of proving that you have stated is flawed. My relationship with God exists whether or not you believe it or not. Despite your words, I predict there may be a day that you see God's activity and relationship with you in this world, because there was equally a day when I did not. Then what do you really want to know?