Something that I have often thought about is how does God know when our thoughts go from normal thoughts to when we say a silent prayer? Does God listen to all of the thoughts of earth's 8,000,000,000 people 24/7 and when one person goes into prayer mode then God's ears perk up with an "incoming" alert? Then he has to decide if he answers the prayers to help a brother with cancer or just let the poor guy die. Should he direct a witness to go to a certain house to place the magazines or just roll the dice?
It all seems so moronic. If God wanted to reveal himself and prove that he is the one true God, he sure picked the wrong group of people to get the job done.