The “naturalism” in RRNA’s title refers to the perspective that nothing supernatural actually exists. Almost all naturalists see science as the best means for understanding what does exist, and it’s probably fair to say that naturalists tend to think that everything is physical. Naturalism is a more thorough position than atheism. Many atheists are naturalists, but if you are a naturalist, beyond a disbelief in supernatural gods, you also do not believe in many other supernatural suppositions, such as ghosts, nonphysical energies, and a nonphysical soul. Many humanists, Buddhists, skeptics, and freethinkers consider themselves naturalists. Early interest in naturalism among the people who formed RRNA in 2004 came from the brights movement and Tom Clark’s website naturalism.org.