The New Atheists generally contend that:
- The existence of God can be tested scientifically and disproven
- The existence of God can be tested logically and disproven
- That belief in God and in science are mutually exclusive
- That morality, sometimes perceived as derived from religion, can be understood and directed scientifically
- That belief in God is detrimental to society, to the individual and to morality.
Many contemporary atheists write from a scientific perspective. Unlike previous writers, many of whom thought that science was indifferent, or even incapable of dealing with the "God" concept, Dawkins argues to the contrary, claiming the "God Hypothesis" is a valid scientific hypothesis, having effects in the physical universe, and like any other hypothesis can be tested and falsified. Other contemporary atheists such as Victor Stenger propose that the personal Abrahamic God is a scientific hypothesis that can be tested by standard methods of science. Both Dawkins and Stenger conclude that the hypothesis fails any such tests, and argue that naturalism is sufficient to explain everything we observe in the universe, from the most distant galaxies to the origin of life, species, and the inner workings of the brain and consciousness. Nowhere, they argue, is it necessary to introduce God or the supernatural to understand reality while upholding the possibility of one. New Atheists reject Jesus' divinity.
Scientific testing of religion
Non-believers assert that many religious or supernatural claims (such as the virgin birth of Jesus and the afterlife) are scientific claims in nature. They argue, as do deists and Progressive Christians, for instance, that the issue of Jesus' supposed parentage is not a question of "values" or "morals", but a question of scientific inquiry. Rational thinkers believe science is capable of investigating at least some, if not all, supernatural claims. Institutions such as the Mayo Clinic and Duke University are attempting to find empirical support for the healing power of intercessory prayer. According to Victor Stenger, these experiments have found no evidence that intercessory prayer works.
Stenger also argues in his book, God: The Failed Hypothesis, that a God having omniscient, omnibenevolent and omnipotent attributes, which he termed a 3O God, cannot logically exist. A similar series of logical disproofs of the existence of a God with various attributes can be found in Michael Martin and Ricki Monnier's The Impossibility of God, or Theodore M. Drange's article, "Incompatible-Properties Arguments".
Views on non-overlapping magisteria
Richard Dawkins has been particularly critical of the conciliatory view that science and religion are not in conflict, noting, for example, that the Abrahamic religions constantly deal in scientific matters. In a 1998 article published in Free Inquiry magazine, and later in his 2006 book The God Delusion, Dawkins expresses disagreement with the view advocated by Stephen Jay Gould that science and religion are two non-overlapping magisteria (NOMA) each existing in a "domain where one form of teaching holds the appropriate tools for meaningful discourse and resolution". In Gould's proposal, science and religion should be confined to distinct non-overlapping domains: science would be limited to the empirical realm, including theories developed to describe observations, while religion would deal with questions of ultimate meaning and moral value. Dawkins contends that NOMA does not describe empirical facts about the intersection of science and religion, "it is completely unrealistic to claim, as Gould and many others do, that religion keeps itself away from science's turf, restricting itself to morals and values. A universe with a supernatural presence would be a fundamentally and qualitatively different kind of universe from one without. The difference is, inescapably, a scientific difference. Religions make existence claims, and this means scientific claims."
Science and morality
Main article: Science of morality
Popularized by Sam Harris is the view that science and thereby currently unknown objective facts may instruct human morality in a globally comparable way. Harris' book The Moral Landscape and accompanying TED Talk How Science can Determine Moral Values proposes that human well-being and conversely suffering may be thought of as a landscape with peaks and valleys representing numerous ways to achieve extremes in human and animal experience, and that there are objective states of well-being.
New Atheism is politically engaged in a variety of ways. These include campaigns to draw attention to the biased privileged position religion has and to reduce the influence of religion in the public sphere, attempts to promote cultural change (centering, in the United States, on the mainstream acceptance of atheism), and efforts to promote the idea of an "atheist identity". Internal strategic divisions over these issues have also been notable, as are questions about the diversity of the movement in terms of its gender and racial balance.