What Scientism Is Not- The Strawman
In discussions of the existence of God and the truth of Christianity, atheists are often understood and represented to hold to the idea of scientism. Scientism being the philosophical view that the study of nature (science) is the only valid source of truth about reality. In my conversations with atheists, though, if they start out affirming such a view, they usually concede it within a few minutes of my pointing out that everyone relies on knowledge outside the sciences all the time. There are a few hold-outs, but generally this is my experience.
I recently reviewed J.P. Moreland's book "Scientism and Secularism" on this subject. One of the critiques that I have seen from many people (including both atheists and Christians) is that Moreland wasted time arguing against atheism using a misunderstanding of scientism. The charge is that he argued against a view that few atheists actually defend- a strawman. Of course, most atheists recognize that other sources of truth exist outside nature. They know, understand, and accept the defeaters presented by Moreland.