Any branch of science which proposes to explain the unobserved past is metaphysical.
Well, that would have to include criminal forensics. So I suppose any murder case without a witness should now be decided by theologians, philosophers, psychics and/or witchdoctors, rather than on the basis of evidence gathered and interpreted by forensic scientists?
Any branch of science which proposes to explain the unobserved past is metaphysical.
So do you think OJ should have been found 'not guilty' because it was metaphysical question?
"Any branch of science which proposes to explain the unobserved past is metaphysical."
Not if the past left physical evidence of what happened.
What about medicine?...someone has seizures, or someone goes into a coma...no one observes it when it happens, there is nothing in the persons medical history to suggest why this happened...
Would you suggest that a priest, or a philospher make the determination as to why this has happened?...or is this better left to the doctors, to run their medical, scientific tests, find out what happened, and propose a medical course of action?
I think your statement that "Any branch of science which proposes to explain the unobserved past is metaphysical" is quite incorrect...
So criminals, by and large, are convicted on metaphysical evidence?
And Newton's astronomomy, which is routinely used to determine the positions of the planets in the past, is metaphysical?