It is now generally admitted, at any rate by philosophers, that the existence of a being having the attributes which define the god of any non-animistic religion cannot be demonstratively proved... [A]ll utterances about the nature of God are nonsensical.

Religion, by its very nature as an untestable belief in undetectable beings and an unknowable afterlife, disables our reality checks. It ends the conversation. It cuts off inquiry: not only factual inquiry, but moral inquiry. Because God's law trumps human law, people who think they're obeying God can easily get cut off from their own moral instincts. And these moral contortions don't always lie in the realm of theological game-playing. They can have real-world consequences: from genocide to infanticide, from honor killings to abandoned gay children, from burned witches to battered wives to blown-up buildings.