Some philosophical views, especially those that come from materialism and pragmatism, don’t make a difference between the supernatural and the natural (including strange entities like non-natural values and universals as they are commonly conceived).

Naturalism doesn’t say that things or theories that are often called “unnatural” don’t exist or are wrong, but it does say that all things and theories should be studied using the same methods. So, anything that is weird is either not real, can’t be known, or isn’t very different from natural events or hypotheses.