In a Q&A about his new book, Fr. White says there are two central challenges to Christian belief prevalent in Western culture. The first is “indifferentism,” the idea that all religions and worldviews are equally arbitrary or implausible. The other is scientific naturalism, which holds that the laws of physics, chemistry, and biology are the best and virtually the only resource we have to explain reality, and there is no other answer to why human beings exist. Enjoy the view; you will be dead soon.