The twenty-first century is witnessing the emergence of a "new atheism" advocated by pundits such as Christopher Hitchens and Richard Dawkins. In The Impossibility of Atheism, author Clayton Sullivan shows that arguments theists have used in the past to counter atheists' contentions about the nonexistence of God do not work with today's version. A new tactic is required.
Sullivan provides a more effective method of countering new atheism in The Impossibility of Atheism. His method is based on the work of the ancient philosopher Parmenides. According to Parmenides, it is impossible for the mind to think about something that does not exist. Sullivan contends, therefore, that atheism is fraudulent or intellectually bankrupt because atheists, ignoring Parmenides, do not understand that it is impossible to think about God if He does not exist.