As plain as the nose on your face?

A thought, definitely un-original, occasioned by the claim sometimes found among young universe (not simply "young Earth"!) creationists that we can't trust, for instance, the evidence of distant stars because the effects of sin mean that we could be mistaken in our reading of nature. Isn't it the case that the noetic effects of the Fall in fact affect our ability to deal with things of God (e.g., Scripture) rather more strikingly than things of nature?

Of course, unambiguous teachings of Scripture must trump "science"; but as Blocher demonstrates so ably, it's not that simple in the early chapters of Genesis. And thus, if Genesis 1 isn't about the date of creation, the issue will fade into insignificance.