"every scientific measurement...?
how do you apply the scientific method to the long gone [supposedly existing MYO]past shimrod."

Oh, you know, all those things like stratification, radioactive dating methods, comparison of fossils with other extinct and living creatures etc., etc., etc. Plus, of course, the flood of recent discoveries in fields like physics, astronomy and cosmology. All of those things that you 'Creationists' are determined not to believe in.

An image comes into my mind of a silly old man attempting to stop a tsunami by waving his arms in the air!