God is in a dilemma - If God were to appear on earth to prove that he/she/they exist about the only converts to believing in God would be the Atheists and Agnostics. Since it is highly unlikely that God would reveal which religion is right then by default all religions are wrong and their followers would turn away from God. God would also be pummelled with questions "Do you have to get your hair cut in Heaven?" - why did so and so die? - why do we have cancer and war?-The list would go on and on. Scientists and news reporters would be asking some tougher questions like why the diversity amongst humans if we are formed in your image - how does a seed know what to grow in to - In our quest for proof - God would likely have to demonstrate some awe inspiring power - curing cancer likely wouldn't cut it - wiping Australia from the face of the earth with a wave of God's hands would be a start towards proof. So you see by us questioning the existence of God does not prove God does not exist - God likely is tired of his experiment on our blue planet and feels confident that we will either improve or destroy ourselves so God's direct presence is not required. God can still live in the beauty of a spring flower, the smile from a stranger or the love of a child. Whether God exists or not is quite unimportant - what we as humans do in our day to day interactions with each other and the planet is what is important.