A popular argument for atheism - along with being a popular scientific rebuttal of [[intelligent design]] - is the notion of the [[infinite regress]]. Every action or being requires a cause, so if God exists, God must have a cause; that cause also had a cause, and so on. | A popular argument for atheism - along with being a popular scientific rebuttal of [[intelligent design]] - is the notion of the [[infinite regress]]. Every action or being requires a cause, so if God exists, God must have a cause; that cause also had a cause, and so on. |