Not directed to me, but here gos...
Anything said in the Bible that contradicts the best scientific reasoning must be considered a miracle, and believed or not believed on faith. There are miracles recorded in the Bible that have left no physical imprint on the earth, and the Flood is one of these. Belief in the Flood as a miracle makes sense as an article of faith, but it is nonsense to assert that it has left a physical record.
What does belief in a non-existent global flood have to do with faith? What reason would there be to put all animals in a boat to save them if it were just a regional flood?
Why couldn't God just take the animals and Noah's family out of time and put them back after the flood? Why would God need Noah to build a boat when God could have saved him the trouble?
There is a difference between believing in miracles and taking as fact utter nonsense extracted from an early pagan myth.
And similarly, at base, the scientific method and its results must also be believed or not believed on faith. First principles (including belief in the correspondence of sensory perception with external reality, if that is ones first principle) ultimately rest on faith.
Belief in the Flood as a miracle makes sense as an article of faith, but it is nonsense to assert that it has left a physical record.
Believing that the Flood was real and believing that it left a physical record are two different things. I should have left out the word “physical” when I asked “What is your basis for rejecting the Old Testament testimony concerning the physical reality of the Flood...” to avoid implying that the Flood was not a supernatural event.
The Pharisees also with the Sadducees came, and tempting desired him that he would shew them a sign from heaven.
He answered and said unto them, When it is evening, ye say, It will be fair weather: for the sky is red.
And in the morning, It will be foul weather to day: for the sky is red and lowring. O ye hypocrites, ye can discern the face of the sky; but can ye not discern the signs of the times?
A wicked and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonas. And he left them, and departed. – Matthew 16:1-4
The above quote is not a condemnation of science or scientists, but of those who would subject the Creator to the creation.