Should I gather then, that science has no business examining the geologic column and extrapolating from the evidence backward as to what might have happened to cause it's present condition?
No, you shouldn't. Try rereading his comment (or better yet, all the posts on this topic) and try again. You're not only mixing apples and oranges, your doing apples and typewriters.
I did. When it comes to the fossil record, evolutionists don't even bother "calculating the probability of things that have already happened." They just forge ahead and make conclusions based on the similar or dissimilar appearances of the critters on display.
But they certainly are starting with an "existing outcome," namely the fossil record itself.