[js1138]

Now, naturalism is fine if you are dealing in the technical areas of science. It does not work once you cross over into the metaphysical realm. Evolution is metaphysical naturalism and is invalid.

I'm a bit lost trying to figure out which branches of science deal with physical issues and which deal with metaphysical.

[GourmetDan]

Any branch of science which proposes to explain the unobserved past is metaphysical.